TY - JOUR TI - From the editors of this issue JO - Sbornik. Mathematics PY - 2016 SP - 1491 EP - 1492 VL - 207 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2016_207_11_a0/ LA - en ID - SM_2016_207_11_a0 ER -