TY  - JOUR
TI  - Meetings of the Moscow Mathematical Society
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 2002
SP  - 619
EP  - 626
VL  - 57
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_2002_57_3_a21/
LA  - en
ID  - RM_2002_57_3_a21
ER  -