TY  - JOUR
TI  - Joint sessions of the Petrovskii Seminar on differential equations and mathematical problems of physics and of the Moscow Mathematical Society (seventeenth session, 24--27~January~1995)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1995
SP  - 731
EP  - 809
VL  - 50
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1995_50_4_a3/
LA  - en
ID  - RM_1995_50_4_a3
ER  -