TY  - JOUR
AU  - V. V. Vershinin
AU  - V. G. Gorbunov
TI  - N.~Ray's elements as obstructions to orientability of symplectic cobordisms
JO  - Doklady Akademii Nauk
PY  - 1985
SP  - 1289
EP  - 1292
VL  - 285
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1985_285_6_a0/
LA  - ru
ID  - DAN_1985_285_6_a0
ER  -