TY  - JOUR
AU  - E. V. Shikin
TI  - Parabolicity of embeddable and hyperbolicity of nonembeddable two-dimensional manifolds of negative curvature
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1990
SP  - 42
EP  - 45
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1990_5_a8/
LA  - ru
ID  - VMUMM_1990_5_a8
ER  -