TY - JOUR AU - N. D. Polyakov TI - Differential-geometric structures on an almost contact manifold JO - Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara PY - 1977 SP - 113 EP - 137 VL - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTG_1977_8_a5/ LA - ru ID - INTG_1977_8_a5 ER -