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Some problems of the qualitative theory of differential equations
V. V. Nemytskii
Citation:
V. V. Nemytskii, “Some problems of the qualitative theory of differential equations”, Russian Math. Surveys, 9:3 (1954)
Linking options:
https://www.mathnet.ru/eng/rm8082 https://www.mathnet.ru/eng/rm/v9/i3/p39
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