%0 Journal Article
%A R. I. Alidema
%T Frequency conditions for the entry into a sliding state of nonlinear systems with discontinuous characteristics
%J Differencialʹnye uravneniâ
%D 1987
%P 510-511
%V 23
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_3_a19/
%G ru
%F DE_1987_23_3_a19