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JOURNALS
// Differentsial'nye Uravneniya
// Archive
Differ. Uravn.,
1972
Volume 8,
Number 6,
Pages
1095–1097
(Mi de1589)
Short Communications
The limit cycles of the equation
$\ddot x+f(x,\,\dot x)\dot x+g(x)=0$
E. D. Zhitelzeif
Popov Higher Naval Academy of Radio Electronics
UDC:
517.925.12
Received:
08.02.1971
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Steklov Math. Inst. of RAS
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