TY - JOUR AU - Yu. A. Demidovich TI - On some generalizations of the property B problem of an $n$-uniform hypergraph JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2020 SP - 95 EP - 122 VL - 23 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2020_23_1_a5/ LA - ru ID - FPM_2020_23_1_a5 ER -