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JOURNALS
// Differentsial'nye Uravneniya
// Archive
Differ. Uravn.,
1985
Volume 21,
Number 2,
Pages
236–240
(Mi de5427)
Ordinary Differential Equations
Some extremal properties of observable differential systems
O. I. Nikonov
Institute of Mathematics and Mechanics, Ural Branch of the AS of USSR
UDC:
517.977
Received:
07.09.1982
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Steklov Math. Inst. of RAS
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