TY - JOUR AU - S. Ouarab AU - A. O. Chahdi AU - M. Izid TI - Ruled Surface Generated by a Curve Lying on a Regular Surface and its Characterizations JO - Journal for geometry and graphics PY - 2020 SP - 257 EP - 267 VL - 24 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JGG_2020_24_2_JGG_2020_24_2_a9/ ID - JGG_2020_24_2_JGG_2020_24_2_a9 ER -