On the structure of the Levinson center for monotone non-autonomous dynamical systems with a first integral

Autor:	Cheban, David
Zdroj:	Carpathian Journal of Mathematics, 2022 Jan 01. 38(1), 67-94.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/27082121 Zobrazit plný text záznamu