TY - JOUR AU - G. A. Karagulian TI - On the selection of a~convergence subsystem with logarithmic density JO - Sbornik. Mathematics PY - 1989 SP - 41 EP - 56 VL - 64 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1989_64_1_a2/ LA - en ID - SM_1989_64_1_a2 ER -