TY  - JOUR
AU  - R. Ts. Musaelyan
TI  - The existence of infinite polygons in a~two-dimensional metric of variable negative curvature
JO  - Sbornik. Mathematics
PY  - 1994
SP  - 459
EP  - 469
VL  - 79
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1994_79_2_a12/
LA  - en
ID  - SM_1994_79_2_a12
ER  -