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    <title>Introduction to non-linear mechanics</title>
    <subTitle>Kryloff,N. and N. Bogoliuboff ; a free translation by Solomon Lefschetz of excerpts from two Russian monographs</subTitle>
  </titleInfo>
  <titleInfo type="alternative">
    <title>Non-linear mechanics</title>
  </titleInfo>
  <name type="personal">
    <namePart>Kryloff,N. (Nikolaĭ Mitrofanovich)</namePart>
    <namePart type="date">1879-1955</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
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  <name type="personal">
    <namePart>Bogoli͡ubov, N. N. (Nikolaĭ Nikolaevich)</namePart>
    <role>
      <roleTerm type="text">author.</roleTerm>
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  </name>
  <name type="personal">
    <namePart>Lefschetz, Solomon</namePart>
    <namePart type="date">1884-1972</namePart>
    <role>
      <roleTerm type="text">translator.</roleTerm>
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  <typeOfResource>text</typeOfResource>
  <genre authority="marc">bibliography</genre>
  <originInfo>
    <place>
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    <place>
      <placeTerm type="text">New York</placeTerm>
    </place>
    <publisher>Kraus Reprint Co.</publisher>
    <dateIssued>1970</dateIssued>
    <dateIssued encoding="marc" point="start">1970</dateIssued>
    <dateIssued encoding="marc" point="end">1943</dateIssued>
    <issuance>monographic</issuance>
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    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
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  <language>
    <languageTerm authority="iso639-2b" type="code">rus</languageTerm>
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  <physicalDescription>
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    <extent>106 p. : ill. ; 24 cm.</extent>
  </physicalDescription>
  <note>A reprint of the Princeton University Press edition of 1947.</note>
  <note>Errata: p. 106.</note>
  <note>Bibliography: p. [100]-105.</note>
  <subject authority="lcsh">
    <topic>Differential equations</topic>
  </subject>
  <subject authority="lcsh">
    <topic>Oscillations</topic>
  </subject>
  <classification authority="ddc">530.1 KRI</classification>
  <relatedItem type="series">
    <titleInfo>
      <title>Annals of mathematics studies ; no. 11</title>
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