TY - JOUR AU - È. G. Neifel'd TI - Geometries defined by a polarity in a projective space over an algebra JO - Trudy Geometricheskogo Seminara PY - 1983 SP - 64 EP - 66 VL - 15 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUTGS_1983_15_a9/ LA - ru ID - KUTGS_1983_15_a9 ER -