TY - JOUR AU - E. G. Belov AU - A. G. Chentsov TI - Certain properties of two-valued measures and the conditions of universal integrability JO - Matematičeskie zametki PY - 1987 SP - 288 EP - 297 VL - 42 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1987_42_2_a13/ LA - ru ID - MZM_1987_42_2_a13 ER -