TY  - JOUR
AU  - G. G. Ivanov
TI  - Polynomial conservation laws and exact solutions associated with isometric and homothetic symmetries in the nonlinear sigma model
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1985
SP  - 144
EP  - 152
VL  - 62
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_1985_62_1_a11/
LA  - ru
ID  - TMF_1985_62_1_a11
ER  -