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N.</subfield><subfield code="q">(Nikolaĭ Nikolaevich)</subfield><subfield code="0">http://id.loc.gov/authorities/names/n85041435</subfield><subfield code="1">http://id.loc.gov/rwo/agents/n85041435</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Asymptotic methods in the theory of non-linear oscillations /</subfield><subfield code="c">[by] N. N. Bogoliubov and Y. A. Mitropolsky. Translated from Russian.</subfield></datafield><datafield tag="250" ind1=" " ind2=" "><subfield code="a">[2d ed.].</subfield></datafield><datafield tag="260" ind1=" " ind2=" "><subfield code="a">Delhi :</subfield><subfield code="b">Hindustan Pub. Corp.,</subfield><subfield code="c">1961.</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">537 p.</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">unmediated</subfield><subfield code="b">n</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">volume</subfield><subfield code="b">nc</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">International monographs on advanced mathematics and physics</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">Russian monographs and texts on advanced mathematics and physics ;</subfield><subfield code="v">v. 10]</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Stamped on t. p.: Gordon and Breach Science Publishers, New York.</subfield></datafield><datafield tag="504" ind1=" " ind2=" "><subfield code="a">Includes bibliography.</subfield></datafield><datafield tag="538" ind1=" " ind2=" "><subfield code="a">Mode of access: Internet.</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Asymptotes.</subfield><subfield code="0">http://id.loc.gov/authorities/subjects/sh85009053</subfield></datafield><datafield tag="650" ind1=" " ind2="0"><subfield code="a">Vibration.</subfield><subfield code="0">http://id.loc.gov/authorities/subjects/sh85143117</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mitropolʹskiĭ, I︠U︡. 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