TY - JOUR AU - Li, Yangming TI - -covering systems of subgroups for the class of supersoluble groups. JO - Sibirskij Matematicheskij Zhurnal PY - 2006 SP - 575 VL - 47 IS - 3 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/item/SMZ_2006__47_3_53180/ LA - en ID - SMZ_2006__47_3_53180 ER -