%0 Journal Article
%A A. E. Irisov
%A E. L. Tonkov
%T Sufficient conditions for optimality of Birkhoff recurrent motions for differential inclusion
%J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki
%D 2005
%P 59-74
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VUU_2005_1_a3/
%G ru
%F VUU_2005_1_a3