TY - JOUR AU - I. G. Shandra TI - On completely idempotent pseudo-connections on semi-Riemannian and pseudo-Riemannian spaces and on concircular fields JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2001 SP - 58 EP - 70 IS - 11 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IVM_2001_11_a7/ LA - ru ID - IVM_2001_11_a7 ER -