TY  - JOUR
TI  - Joint sessions of the Petrovskii Seminar on differential equations and mathematical problems of physics and of the Moscow Mathematical Society (second meeting, 18--20~January~1979)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1979
VL  - 34
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1979_34_4_a31/
LA  - ru
ID  - RM_1979_34_4_a31
ER  -