TY  - JOUR
AU  - A. N. Leznov
AU  - V. G. Smirnov
AU  - A. B. Shabat
TI  - The~group of internal symmetries and the conditions of integrability of two-dimensional dynamical systems
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1982
SP  - 10
EP  - 21
VL  - 51
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1982_51_1_a1/
LA  - ru
ID  - TMF_1982_51_1_a1
ER  -