TY - JOUR AU - S. I. Grigelionis TI - Some questions on the geometry of nonholonomic hypercomplexes $\mathrm{NGr}(1,4,5)$ JO - Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara PY - 1974 SP - 55 EP - 68 VL - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTG_1974_5_a1/ LA - ru ID - INTG_1974_5_a1 ER -