TY - JOUR AU - A. P. Shirokov TI - On a type of $G$-structures defined by algebras JO - Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara PY - 1966 SP - 425 EP - 456 VL - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTG_1966_1_a10/ LA - ru ID - INTG_1966_1_a10 ER -