%0 Journal Article
%A E. I. Bravyi
%T On unimprovable conditions of the solvability of the periodic problem for second order functional differential equations
%J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki
%D 2013
%P 3-19
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VUU_2013_3_a0/
%G ru
%F VUU_2013_3_a0