Uitgevers Springer-Verlag Berlin and Heidelberg Gm

Cover for A. J. Bearden · Biochemistry - Structure and Bonding (Paperback Book) [1970 edition] (1970)

Biochemistry - Structure and Bon... (1970)

Cover for Ernst Hadorn · Experimentelle Entwicklungsforschung im Besonderen an Amphibien - Verstandliche Wissenschaft (Paperback Book) [2., erw. Aufl. 1970. 2. Nachdruck edition] (1970)

2., erw. Aufl. 1970. 2. Nachdruck edition

Experimentelle Entwicklungsforsc... (1970)

Cover for Klaus Koch · Das Buch Der Bucher: Die Entstehungsgeschichte Der Bibel - Verstandliche Wissenschaft (Paperback Book) [2nd 2., Durchges. Aufl. 1970. Nachdruck edition] (1970)

2nd 2., Durchges. Aufl. 1970. Nachdruck edition

Das Buch Der Bucher: Die Entsteh... (1970)

Cover for Raimund Willecke · Grundriss des Bergrechts (Paperback Book) [2., neubearb. u. erw. Aufl. edition] (1970)

2., neubearb. u. erw. Aufl. edition

Grundriss des Bergrechts (1970)

Raimund Willecke

Cover for M. M. Lavrentiev · Multidimensional Inverse Problems for Differential Equations - Lecture Notes in Mathematics (Paperback Book) (1970)

Multidimensional Inverse Problem... (1970)

M. M. Lavrentiev

Cover for R. M. Dudley · Lectures in Modern Analysis and Applications III - Lecture Notes in Mathematics (Paperback Book) [1970 edition] (1970)

Lectures in Modern Analysis and ... (1970)

Cover for Germany · Zur Durchfuhrung Der Gesetzlichen Pockenschutzimpfung - Abhandlungen Aus Dem Bundesgesundheitsamt (Paperback Book) [1969 edition] (1970)

Zur Durchfuhrung Der Gesetzliche... (1970)

Cover for Manfred V. Ardenne · Elektronenanlagerungs-massenspektrographie Organischer Substanzen (Paperback Book) [German edition] (1971)

Elektronenanlagerungs-massenspek... (1971)

Manfred V. Ardenne

Cover for H Burkle De La Camp · Sondersitzung Plastische Chirurgie Der 87. Tagung Der Deutschen Gesellschaft Fur Chirurgie Am 1. April 1970 in Munchen - Chirurgia Plastica et Reconstructiva (Paperback Book) [German edition] (1970)

Sondersitzung Plastische Chirurg... (1970)

H Burkle De La Camp

Cover for W M Fleischman · Set-valued Mappings, Selections and Topological Properties of 2x: Proceedings of the Conference Held at the State University of New York at Buffalo, May 8-10, 1969 - Lecture Notes in Mathematics (Paperback Book) (1970)

Set-valued Mappings, Selections ... (1970)

Cover for Yum-tong Siu · Gap-sheaves and Extension of Coherent Analytic Subsheaves - Lecture Notes in Mathematics (Paperback Book) (1971)

Gap-sheaves and Extension of Coh... (1971)

Cover for J.n. Mordeson · Structure of Arbitrary Purely Inseparable Extensions - Lecture Notes in Mathematics (Paperback Book) (1970)

Structure of Arbitrary Purely In... (1970)

Cover for Gustav a Martini · Metabolic Changes Induced by Alcohol (Paperback Book) (1972)

Metabolic Changes Induced by Alc... (1972)

Gustav a Martini

Cover for L. Stocker · Pramedikationseffekte Auf Bronchialwiderstand Und Atmung - Anaesthesiologie Und Intensivmedizin / Anaesthesiology and Intensive Care Medicine (Paperback Book) [German edition] (1971)

Pramedikationseffekte Auf Bronch... (1971)

Cover for Kendall N. Houk · NMR Spectroscopy of Annulenes - Topics in Current Chemistry (Paperback Book) (1971)

NMR Spectroscopy of Annulenes - ... (1971)

Kendall N. Houk

Cover for F P Peterson · The Steenrod Algebra and Its Applications: a Conference to Celebrate N. E. Steenrod's Sixtieth Birthday. Proceedings of the Conference Held at the Battelle Memorial Institute, Columbus, Ohio, March 30th-april 4th, 1970 - Lecture Notes in Mathematics (Paperback Book) (1970)

The Steenrod Algebra and Its App... (1970)

Cover for Birger Iversen · Linear Determinants with Applications to the Picard Scheme of a Family of Algebraic Curves - Lecture Notes in Mathematics (Paperback Book) (1970)

Linear Determinants with Applica... (1970)

Cover for V Bargmann · Group Representations in Mathematics and Physics: Battelle Seattle 1969 Rencontres - Lecture Notes in Physics (Paperback Book) (1970)

Group Representations in Mathema... (1970)

Cover for Kendall N. Houk · Organometallic Compounds in Industry - Topics in Current Chemistry (Paperback Book) [English And German, Bilingual edition] (1971)

English And German, Bilingual edition

Organometallic Compounds in Indu... (1971)

Kendall N. Houk

Cover for H Wagner · Pharmacognosy and Phytochemistry: 1st International Congress Munich, 1970 (Paperback Book) [Softcover reprint of the original 1st ed. 1971 edition] (1971)

Softcover reprint of the original 1st ed. 1971 edition

Pharmacognosy and Phytochemistry... (1971)

Cover for P. Hemmerich · Structure and Bonding - Structure and Bonding (Paperback Book) (1971)

Structure and Bonding - Structur... (1971)

Cover for T Sugahara · Biological Aspects of Radiation Protection: Proceedings of the International Symposium, Kyoto, October 1969 (Paperback Book) [Softcover reprint of the original 1st ed. 1971 edition] (1971)

Softcover reprint of the original 1st ed. 1971 edition

Biological Aspects of Radiation ... (1971)

Cover for H. Drygas · The Coordinate-Free Approach to Gauss-Markov Estimation - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [Softcover reprint of the original 1st ed. 1970 edition] (1970)

Softcover reprint of the original 1st ed. 1970 edition

The Coordinate-Free Approach to ... (1970)

Cover for Marcel Brelot · On Topologies and Boundaries in Potential Theory - Lecture Notes in Mathematics (Paperback Book) (1971)

On Topologies and Boundaries in ... (1971)

Cover for Konrad Jacobs · Selecta Mathematica III - Heidelberger Taschenbucher (Paperback Book) [German edition] (1971)

Selecta Mathematica III - Heidel... (1971)

Cover for K Richter · UEber Eine Ballonsonde Fur Polarlichtmessungen Und UEber Den Vergleich Von Polarlichtemissionen, Roentgenstrahlen Und Ionospharischen Absorptionen - Mitteilungen Aus Dem Max-Planck-Institut Fur Aeronomie (Paperback Book) [1970 edition] (1970)

UEber Eine Ballonsonde Fur Polar... (1970)

Cover for Joachim Lambek · Torsion Theories, Additive Semantics, and Rings of Quotients - Lecture Notes in Mathematics (Paperback Book) (1971)

Torsion Theories, Additive Seman... (1971)

Cover for G. Zierott · Die Bedeutung Der Adrenergen Blockade Fur den Haemorrhagischen Schock - Anaesthesiologie Und Intensivmedizin / Anaesthesiology and Intensive Care Medicine (Paperback Book) [German edition] (1971)

Die Bedeutung Der Adrenergen Blo... (1971)

Cover for Erich Letterer · Morphologische AEquivalentbilder Immunologischer Vorgange Im Organismus (Paperback Book) [1971 edition] (1971)

Morphologische AEquivalentbilder... (1971)

Cover for Winston E. Kock · Schallwellen Und Lichtwellen - Verstandliche Wissenschaft (Paperback Book) [German edition] (1971)

Schallwellen Und Lichtwellen - V... (1971)

Winston E. Kock

Cover for H Lettre · Aktuelle Probleme Aus Dem Gebiet Der Cancerologie: Drittes Heidelberger Symposion (Paperback Book) (1971)

Aktuelle Probleme Aus Dem Gebiet... (1971)

Cover for H Contzen · Verhandlungen Der Deutschen Gesellschaft Fur Unfallheilkunde, Versicherungs-, Versorgungs- Und Verkehrsmedizin E.v. - Hefte Zur Zeitschrift "Der Unfallchirurg" (Paperback Book) (1971)

Verhandlungen Der Deutschen Gese... (1971)

Cover for Richard Leon Sidman · Neuroanatomie Programmiert: Band 1: Zentralnervensystem Grosse Bahnen Herdfoermige Lasionen (Paperback Book) (1971)

Neuroanatomie Programmiert: Band... (1971)

Richard Leon Sidman

Cover for W. Hahn · Elektronik-praktikum Fur Informatiker - Heidelberger Taschenbucher (Paperback Book) [German edition] (1971)

Elektronik-praktikum Fur Informa... (1971)

Cover for Leonard D. Baumert · Cyclic Difference Sets - Lecture Notes in Mathematics (Paperback Book) (1971)

Cyclic Difference Sets - Lecture... (1971)

Leonard D. Baumert

Cover for P F Hsieh · Analytic Theory of Differential Equations: the Proceedings of the Conference at Western Michigan University, Kalamazoo, from 30 April to 2 May 1970 - Lecture Notes in Mathematics (Paperback Book) (1971)

Analytic Theory of Differential ... (1971)

Cover for Robert M Brooks · Symposium on Several Complex Variables. Park City, Utah, 1970 - Lecture Notes in Mathematics (Paperback Book) (1971)

Symposium on Several Complex Var... (1971)

Robert M Brooks

Cover for Frank De Meyer · Separable Algebras over Commutative Rings - Lecture Notes in Mathematics (Paperback Book) (1971)

Separable Algebras over Commutat... (1971)

Cover for John Horvath · Several Complex Variables: Part 2 - Lecture Notes in Mathematics (Paperback Book) (1971)

Several Complex Variables: Part ... (1971)

Cover for Harold S. Shapiro · Topics in Approximation Theory - Lecture Notes in Mathematics (Paperback Book) (1971)

Topics in Approximation Theory -... (1971)

Harold S. Shapiro

Cover for E Engeler · Symposium on Semantics of Algorithmic Languages - Lecture Notes in Mathematics (Paperback Book) (1971)

Symposium on Semantics of Algori... (1971)

Cover for Andre Weil · Dirichlet Series and Automorphic Forms: Lezioni Fermiane - Lecture Notes in Mathematics (Paperback Book) (1971)

Dirichlet Series and Automorphic... (1971)

Cover for M Capobianco · Recent Trends in Graph Theory: Proceedings of the First New York City Graph Theory Conference, Held on June 11 - 13, 1970 - Lecture Notes in Mathematics (Paperback Book) (1971)

Recent Trends in Graph Theory: P... (1971)

Cover for R.C. Bingham · Chemistry of Adamantanes - Topics in Current Chemistry (Paperback Book) (1972)

Chemistry of Adamantanes - Topic... (1972)

Cover for Gerhard Thews · Nomogramme Zum Saure-basen-status Des Blutes Und Zum Atemgastransport - Anaesthesiologie Und Intensivmedizin / Anaesthesiology and Intensive Care Medicine (Paperback Book) (1971)

Nomogramme Zum Saure-basen-statu... (1971)

Cover for Jurgen Herzog · Die Wertehalbgruppe Eines Lokalen Rings Der Dimension I - Sitzungsberichte Der Heidelberger Akademie Der Wissenschaften / Sitzungsber.heidelberg 71 (Paperback Book) [German edition] (1971)

Die Wertehalbgruppe Eines Lokale... (1971)

Cover for John C. Oxtoby · Mass Und Kategorie - Hochschultext (Paperback Book) [German edition] (1971)

Mass Und Kategorie - Hochschultext (1971)

Cover for Hermann Dinges · Martingales - Lecture Notes in Mathematics (Paperback Book) (1971)

Martingales - Lecture Notes in M... (1971)

Cover for Heinz Graudenz · Momenten-einflusszahlen Fur Durchlauftrager Mit Beliebigen Stutzweiten (Paperback Book) [6. Aufl. edition] (1971)

6. Aufl. edition

Momenten-einflusszahlen Fur Durc... (1971)

Cover for H. Mauri · Vorrichtungsbau - Werkstattbucher (Paperback Book) [6., Neubearb. U. Erw. Aufl. edition] (1971)

6., Neubearb. U. Erw. Aufl. edition

Vorrichtungsbau - Werkstattbucher (1971)

Cover for Hans-joachim Kretschmann · Computeranwendungen Bei Wachstumsproblemen in Biologie Und Medizin (Paperback Book) [German edition] (1971)

Computeranwendungen Bei Wachstum... (1971)

Hans-joachim Kretschmann

Cover for C T C Wall · Proceedings of Liverpool Singularities - Symposium I. (University of Liverpool 1969/70) - Lecture Notes in Mathematics (Paperback Book) (1971)

Proceedings of Liverpool Singula... (1971)

Cover for Peter Goldschneider · Computer (Paperback Book) [German edition] (1971)

Computer (1971)

Peter Goldschneider

Cover for Maurice Holt · Proceedings of the Second International Conference on Numerical Methods in Fluid Dynamics: September 15-19, 1970 University of California, Berkeley - Lecture Notes in Physics (Paperback Book) (1971)

Proceedings of the Second Intern... (1971)

Cover for R. Kohler · Arbeitsbuch Zu "Finanzierung" - Heidelberger Arbeitsbucher (Paperback Book) [German edition] (1971)

Arbeitsbuch Zu "Finanzierung" - ... (1971)

Cover for U. Ueing · Zwei Losungsmethoden fur Nichtkonvexe Programmierungsprobleme - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [German edition] (1971)

Zwei Losungsmethoden fur Nichtko... (1971)

Cover for J. A. Morales · Bayesian Full Information Structrual Analysis: with an Application to the Study of the Belgian Beef Market - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [Softcover reprint of the original 1st ed. 1971 edition] (1971)

Softcover reprint of the original 1st ed. 1971 edition

Bayesian Full Information Struct... (1971)

Cover for R. Balescu · Lectures in Statistical Physics: From the Advanced School for Statistical Mechanics and Thermodynamics Austin, Texas, USA - Lecture Notes in Physics (Paperback Book) (1971)

Lectures in Statistical Physics:... (1971)

Cover for Friedrich W. Bronisch · Psychiatrie Und Neurologie - Heidelberger Taschenbucher (Paperback Book) [German edition] (1971)

Psychiatrie Und Neurologie - Hei... (1971)

Friedrich W. Bronisch

Cover for J L Morris · Symposium on the Theory of Numerical Analysis: Held in Dundee / Scotland, September 15-23, 1970 - Lecture Notes in Mathematics (Paperback Book) (1971)

Symposium on the Theory of Numer... (1971)

Cover for Gustav Feichtinger · Stochastische Modelle Demographischer Prozesse - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [German, First edition] (1971)

German, First edition

Stochastische Modelle Demographi... (1971)

Gustav Feichtinger

Cover for J. H. Trumpy · Transneuronal Degeneration in the Pontine Nuclei of the Cat: Part I. Neuronal Changes in Animals of Varying Ages Part II. The Glial Proliferation - Advances in Anatomy, Embryology and Cell Biology (Paperback Book) (1971)

Transneuronal Degeneration in th... (1971)

Cover for S. Sugiyama · The Embryology of the Human Thyroid Gland Including Ultimobranchial Body and Others Related - Advances in Anatomy, Embryology and Cell Biology (Paperback Book) [Softcover reprint of the original 1st ed. 1971 edition] (1971)

Softcover reprint of the original 1st ed. 1971 edition

The Embryology of the Human Thyr... (1971)

Cover for K. Wendler · Hauptaustauschschritte (Principal Pivoting) - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [German edition] (1971)

Hauptaustauschschritte (Principa... (1971)

Cover for R L Friede · Symposium on Pathology of Axons and Axonal Flow: Organized by the Osterreichische Arbeitsgemeinschaft fur Neuropathologie and the Research Group of Neuropathology of the World Federation of Neurology Wein, September 10 and 11, 1970 - Acta Neuropathologica (Paperback Book) (1971)

Symposium on Pathology of Axons ... (1971)

Cover for R F Schmidt · Neurophysiologie Programmiert (Paperback Book) [1971 edition] (1971)

Neurophysiologie Programmiert (1971)

Cover for J W Gray · Reports of the Midwest Category Seminar V - Lecture Notes in Mathematics (Paperback Book) (1971)

Reports of the Midwest Category ... (1971)

Cover for O. Komarnicki · Programmiermethodik - Heidelberger Taschenbucher (Paperback Book) [German edition] (1971)

Programmiermethodik - Heidelberg... (1971)

Cover for Heinz Neuber · Technische Mechanik (Paperback Book) [2., Uberarb. Aufl. edition] (1971)

2., Uberarb. Aufl. edition

Technische Mechanik (1971)

Cover for Georg L. Floersheim · Transplantationsbiologie - Heidelberger Taschenbucher (Paperback Book) [German edition] (1971)

Transplantationsbiologie - Heide... (1971)

Georg L. Floersheim

Cover for Hermann Hepp · Klassische Feldtheorie Der Polarisierten Kathodenstrahlung Und Ihre Quantelung - Sitzungsberichte Der Heidelberger Akademie Der Wissenschaften / Sitzungsber.heidelberg 71 (Paperback Book) [German edition] (1971)

Klassische Feldtheorie Der Polar... (1971)

Cover for Heinz Koppe · Das Prinzip Von D'alembert in Der Klassischen Mechanik Und in Der Quantentheorie - Sitzungsberichte Der Heidelberger Akademie Der Wissenschaften / Sitzungsber.heidelberg 71 (Paperback Book) [German edition] (1971)

Das Prinzip Von D'alembert in De... (1971)

Cover for Polya, George (Stanford Univ. Stanford University, California Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ. Stanford Univ · Polya, G. Szego, G. Aufgaben Und Lehrsatze Aus Der Analysis (Paperback Book) (1971)

Polya, G. Szego, G. Aufgaben Und... (1971)

Polya, George (Stanford Univ. St...

Cover for H K Buscher · 23. Tagung Vom 27. Bis 31. Oktober 1970 in Baden-Baden - Verhandlungsbericht Der Deutschen Gesellschaft Fur Urologie (Paperback Book) [1971 edition] (1971)

23. Tagung Vom 27. Bis 31. Oktob... (1971)

Cover for L. Maier · The Chemistry of Organophosphorus Compounds I - Topics in Current Chemistry (Paperback Book) (1971)

The Chemistry of Organophosphoru... (1971)

Cover for H. J. Bestmann · The Chemistry of Organophosphorus Compounds II - Topics in Current Chemistry (Paperback Book) [English And German, Bilingual edition] (1971)

English And German, Bilingual edition

The Chemistry of Organophosphoru... (1971)

Cover for Francois Sigrist · H - Spaces: Actes Se La Reunion De Neuchatel (Suisse), Aout 1970 - Lecture Notes in Mathematics (Paperback Book) (1971)

H - Spaces: Actes Se La Reunion ... (1971)

Francois Sigrist

Cover for L. Eberson · Organic Electrochemistry - Topics in Current Chemistry (Paperback Book) [First Thus edition] (1972)

First Thus edition

Organic Electrochemistry - Topic... (1972)

Cover for E. Amtmann · Mechanical Stress, Functional Adaptation and the Variation Structure of the Human Femur Diaphysis - Advances in Anatomy, Embryology and Cell Biology (Paperback Book) [Softcover reprint of the original 1st ed. 1971 edition] (1971)

Softcover reprint of the original 1st ed. 1971 edition

Mechanical Stress, Functional Ad... (1971)

Cover for H.A. Nour Eldin · Optimierung Linearer Regelsysteme mit Quadratischer Zielfunktion - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [German edition] (1971)

Optimierung Linearer Regelsystem... (1971)

H.A. Nour Eldin

Cover for R. Courant · Vorlesungen Uber Differential- Und Integralrechnung (Paperback Book) [4., Unverand. Aufl. edition] (1971)

4., Unverand. Aufl. edition

Vorlesungen Uber Differential- U... (1971)

Cover for N H Kuiper · Manifolds - Amsterdam 1970: Proceedings - Lecture Notes in Mathematics (Paperback Book) (1971)

Manifolds - Amsterdam 1970: Proc... (1971)

Cover for Michel Herve · Analytic and Plurisubharmonic Functions: in Finite and Infinite Dimensional Spaces. Course Given at the University of Maryland, Spring 1970 - Lecture Notes in Mathematics (Paperback Book) (1983)

Analytic and Plurisubharmonic Fu... (1983)

Cover for W. Kutzelnigg · And Electrons in Organic Compounds - Topics in Current Chemistry (Paperback Book) (1972)

And Electrons in Organic Compo... (1972)

Cover for C. A. Schneeweiss · Regelungstechnische Stochastische Optimierungsverfahren in Unternehmensforschung und Wirtschaftstheorie - Lecture Notes in Economics and Mathematical Systems (Paperback Book) [German edition] (1971)

Regelungstechnische Stochastisch... (1971)

C. A. Schneeweiss

Cover for Charles J. Mozzochi · On the Pointwise Convergence of Fourier Series - Lecture Notes in Mathematics (Paperback Book) (1971)

On the Pointwise Convergence of ... (1971)

Charles J. Mozzochi

Cover for T. Rado · On the Problem of Plateau / Subharmonic Functions - Ergebnisse Der Mathematik Und Ihrer Grenzgebiete. 1. Folge (Paperback Book) (1971)

On the Problem of Plateau / Subh... (1971)

Cover for U Pfeifer · Probleme Der Cellularen Autophagie: Morphologische, Enzymcytochemische Und Quantitative Untersuchungen an Normalen Und Alterierten Leberepithelien Der Ratte - Advances in Anatomy, Embryology and Cell Biology (Paperback Book) [1971 edition] (1971)

Probleme Der Cellularen Autophag... (1971)

Cover for John Benedetto · Harmonic Analysis on Totally Disconnected Sets - Lecture Notes in Mathematics (Paperback Book) (1971)

Harmonic Analysis on Totally Dis... (1971)

Cover for David Chillingworth · Proceedings of the Symposium on Differential Equations and Dynamical Systems - Lecture Notes in Mathematics (Paperback Book) (1971)

Proceedings of the Symposium on ... (1971)

David Chillingworth

Cover for Donald Knutson · Algebraic Spaces - Lecture Notes in Mathematics (Paperback Book) (1971)

Algebraic Spaces - Lecture Notes... (1971)

Cover for L. Bernstein · The Jacobi-perron Algorithm: Its Teory and Application - Lecture Notes in Mathematics (Paperback Book) (1971)

The Jacobi-perron Algorithm: Its... (1971)

Cover for G. Owen · Spieltheorie - Hochschultext (Paperback Book) [German edition] (1971)

Spieltheorie - Hochschultext (1971)

Cover for A. Grothendieck · The Tame Fundamental Group of a Formal Neighbourhood of a Divisor with Normal Crossings on a Scheme - Lecture Notes in Mathematics (Paperback Book) (1971)

The Tame Fundamental Group of a ... (1971)

A. Grothendieck

Cover for Umberto Neri · Singular Integrals - Lecture Notes in Mathematics (Paperback Book) (1971)

Singular Integrals - Lecture Not... (1971)

Cover for Kurt Bauknecht · Digitale Simulation - Lecture Notes in Economic and Mathematical Systems (Paperback Book) (1971)

Digitale Simulation - Lecture No... (1971)

Cover for A. Davison · Molecular Orbitals - Topics in Current Chemistry (Paperback Book) [1971 edition] (1971)

Molecular Orbitals - Topics in C... (1971)

Cover for Fritz Linder · Diagnostische Und Therapeutische Fortschritte in Der Krebschirurgie (Paperback Book) (1971)

Diagnostische Und Therapeutische... (1971)

Cover for Christian Gerthsen · Einfuhrung in Das Physikalische Praktikum (Paperback Book) [6., Erw. U. Verb. Aufl. edition] (1971)

6., Erw. U. Verb. Aufl. edition

Einfuhrung in Das Physikalische ... (1971)

Christian Gerthsen

Cover for C T C Wall · Proceedings of Liverpool Singularities - Symposium Ii. (University of Liverpool 1969/70) - Lecture Notes in Mathematics (Paperback Book) (1971)

Proceedings of Liverpool Singula... (1971)