TY  - JOUR
AU  - A. V. Zhiber
TI  - Conservation laws for the equation $u_{tt}-u_{xx}+\sin u=0$
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1977
SP  - 65
EP  - 66
VL  - 11
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1977_11_1_a10/
LA  - ru
ID  - FAA_1977_11_1_a10
ER  -