TY  - JOUR
AU  - O. D. Viktorova
TI  - On the multiply connectedness of level lines $m\pi$ of $n$-soliton solutions of the sine-Gordon equation
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2005
SP  - 255
EP  - 263
VL  - 11
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2005_11_1_a13/
LA  - ru
ID  - FPM_2005_11_1_a13
ER  -