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 1978)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1978
VL  - 33
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/RM_1978_33_3_a29/
LA  - ru
ID  - RM_1978_33_3_a29
ER  -