TY - JOUR AU - N. D. Polyakov TI - Differential geometry of $f$-structure manifolds JO - Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara PY - 1983 SP - 95 EP - 125 VL - 15 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTG_1983_15_a2/ LA - ru ID - INTG_1983_15_a2 ER -