TY  - JOUR
AU  - È. G. Poznyak
AU  - A. G. Popov
TI  - Lobachevskii geometry and equations of mathematical physics
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 418
EP  - 421
VL  - 332
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_332_4_a4/
LA  - ru
ID  - DAN_1993_332_4_a4
ER  -