TY  - JOUR
TI  - Joint sessions of the Petrovskii Seminar on Differential Equations and Mathematical Problems of Physics and of the Moscow Mathematical Society (sixteenth session,  18--21~January~1994)
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1994
SP  - 79
EP  - 143
VL  - 49
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1994_49_4_a3/
LA  - en
ID  - RM_1994_49_4_a3
ER  -