%0 Journal Article
%A O. D. Viktorova
%T On the multiply connectedness of level lines $m\pi$ of $n$-soliton solutions of the sine-Gordon equation
%J Fundamentalʹnaâ i prikladnaâ matematika
%D 2005
%P 255-263
%V 11
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FPM_2005_11_1_a13/
%G ru
%F FPM_2005_11_1_a13