TY  - JOUR
AU  - L. R. Volkovyskii
TI  - Plane geodesically complete subsets in spaces of nonpositive curvature
JO  - Algebra i analiz
PY  - 1994
SP  - 90
EP  - 100
VL  - 6
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_1994_6_4_a2/
LA  - ru
ID  - AA_1994_6_4_a2
ER  -