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JOURNALS
// Differentsial'nye Uravneniya
// Archive
Differ. Uravn.,
1980
Volume 16,
Number 10,
Pages
1750–1759
(Mi de4092)
Ordinary Differential Equations
On the concepts of lower and upper functions
L. A. Lepin
University of Latvia, Riga
UDC:
517.927
Received:
05.12.1977
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Steklov Math. Inst. of RAS
, 2025
Fulltext:
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