TY  - JOUR
AU  - É. V. Nikol'skii
TI  - Generalized functional-invariant solutions of a second-order multidimensional scalar equation of general form
JO  - Doklady Akademii Nauk
PY  - 1989
SP  - 38
EP  - 43
VL  - 309
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1989_309_1_a7/
LA  - ru
ID  - DAN_1989_309_1_a7
ER  -