TY - JOUR AU - A. P. Shirokov TI - Symmetric spaces defined by commutative algebras of the 4th order JO - Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki PY - 1966 SP - 60 EP - 80 VL - 126 IS - 1 UR - http://geodesic.mathdoc.fr/item/UZKU_1966_126_1_a6/ LA - ru ID - UZKU_1966_126_1_a6 ER -