TY  - JOUR
AU  - A. A. Borisenko
TI  - Extrinsically geometric, topological properties of parabolic and saddle surfaces in symmetric spaces of rank one
JO  - Doklady Akademii Nauk
PY  - 1981
SP  - 783
EP  - 787
VL  - 257
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1981_257_4_a2/
LA  - ru
ID  - DAN_1981_257_4_a2
ER  -