TY  - JOUR
AU  - S. R. Svirshchevskii
TI  - Group classification and invariant solutions of nonlinear polyharmonic equations
JO  - Differencialʹnye uravneniâ
PY  - 1993
SP  - 1772
EP  - 1781
VL  - 29
IS  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1993_29_10_a12/
LA  - ru
ID  - DE_1993_29_10_a12
ER  -