Andronov A.A.,  Leontovich E.A.,  Gordon I.I.,  Mayer A.G. Kachestvennaya teoriya dinamicheskikh sistem vtorogo poryadka./Andronov A.A.,  Leontovich E.A.,  Gordon I.I.,  Mayer A.G. Qualitative theory of dynamic systems of the second order. In Russian - landofmagazines.com

TransliterationAndronov A.A., Leontovich E.A., Gordon I.I., Mayer A.G. Kachestvennaya teoriya dinamicheskikh sistem vtorogo poryadka.

In EnglishAndronov A.A., Leontovich E.A., Gordon I.I., Mayer A.G. Qualitative theory of dynamic systems of the second order. In Russian

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