%0 Journal Article %A I. G. Shandra %T On completely idempotent pseudo-connections on semi-Riemannian and pseudo-Riemannian spaces and on concircular fields %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2001 %P 58-70 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2001_11_a7/ %G ru %F IVM_2001_11_a7