TY  - JOUR
AU  - O. M. Dzhokhadze
TI  - Laplace Invariants for Some Classes of Linear Partial Differential Equations
JO  - Differencialʹnye uravneniâ
PY  - 2004
SP  - 58
EP  - 68
VL  - 40
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2004_40_1_a7/
LA  - ru
ID  - DE_2004_40_1_a7
ER  -