TY - JOUR AU - D. D. Kiselev TI - Ultrasoluble coverings of some nilpotent groups by a~cyclic group JO - Izvestiya. Mathematics PY - 2018 SP - 512 EP - 531 VL - 82 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2018_82_3_a3/ LA - en ID - IM2_2018_82_3_a3 ER -