TY  - JOUR
AU  - A. V. Zhiber
AU  - A. B. Shabat
TI  - Systems of equations $u_x=p(u,\,v)$, $v_y=q(u,\,v)$ that possess symmetries
JO  - Doklady Akademii Nauk
PY  - 1984
SP  - 29
EP  - 33
VL  - 277
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1984_277_1_a5/
LA  - ru
ID  - DAN_1984_277_1_a5
ER  -