TY  - JOUR
AU  - S. Sobolev
TI  - Functionally-invariant solutions of wave equation
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1934
SP  - 259
EP  - 264
VL  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TM_1934_5_a15/
LA  - ru
ID  - TM_1934_5_a15
ER  -