TY  - JOUR
AU  - V. V. Filippov
TI  - Families of changes of variables and a uniqueness theorem for
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 704
EP  - 706
VL  - 330
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_330_6_a8/
LA  - ru
ID  - DAN_1993_330_6_a8
ER  -