M. I. Voilokov, “A method of estimating an upper bound of the number of periodic solutions of an autonomous system of two differential equations”, Uspekhi Mat. Nauk, 1961, Volume 16, Issue 3(99),Pages <nobr>159

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Uspekhi Mat. Nauk, 1961 Volume 16, Issue 3(99), Pages 159–162 (Mi rm6624)

Scientific notes and problems

A method of estimating an upper bound of the number of periodic solutions of an autonomous system of two differential equations

M. I. Voilokov

Received: 22.07.1959

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