TY  - JOUR
AU  - E. S. Lyapin
TI  - On the existence and uniqueness of a solution to the general type of equation in connection with reversibility 

JO  - Doklady Akademii Nauk
PY  - 1957
SP  - 552
EP  - 555
VL  - 116
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1957_116_4_a7/
LA  - ru
ID  - DAN_1957_116_4_a7
ER  -