TY - JOUR AU - V. S. Malakhovskii TI - The differential geometry of families of curves and surfaces JO - Itogi Nauki i Tekhniki. Seriya Algebra. Geometriya. Topologiya PY - 1972 SP - 113 EP - 157 VL - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/INTA_1972_10_a2/ LA - ru ID - INTA_1972_10_a2 ER -