TY - JOUR AU - G. Petkov, Emiliyan TI - Development and Implementation of NURBS Models of Quadratic Curves and Surfaces JO - Serdica Journal of Computing PY - 2009 SP - 425 EP - 448 VL - 3 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJC_2009_3_4_a4/ LA - en ID - SJC_2009_3_4_a4 ER -