TY  - JOUR
TI  - Joint sessions of the Petrovskii Seminar on differential equations and mathematical problems of physics and of the Moscow Mathematical Society (eleventh session, 18--21~January~1988)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1988
VL  - 43
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1988_43_4_a33/
LA  - ru
ID  - RM_1988_43_4_a33
ER  -