TY  - JOUR
AU  - A. Yu. Daletskii
TI  - The problem of factorization in a symplectic groupoid and
JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 1033
EP  - 1037
VL  - 308
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_308_5_a0/
LA  - ru
ID  - DAN_1989_308_5_a0
ER  -