TY - JOUR TI - From the editors of volumeĀ 217 JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1998 SP - 320 VL - 221 UR - http://geodesic.mathdoc.fr/item/TM_1998_221_a19/ LA - ru ID - TM_1998_221_a19 ER -