TY  - JOUR
AU  - B. A. Vertgeim
TI  - On multidimensional analogs of a geometric theorem of Poincaré
JO  - Doklady Akademii Nauk
PY  - 1977
SP  - 528
EP  - 530
VL  - 236
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/DAN_1977_236_3_a2/
LA  - ru
ID  - DAN_1977_236_3_a2
ER  -