TY - JOUR AU - Yu. S. Volkov AU - V. T. Shevaldin TI - Shape preserving conditions for quadratic spline interpolation in the sense of Subbotin and Marsden JO - Trudy Instituta matematiki i mehaniki PY - 2012 SP - 145 EP - 152 VL - 18 IS - 4 UR - http://geodesic.mathdoc.fr/item/TIMM_2012_18_4_a12/ LA - ru ID - TIMM_2012_18_4_a12 ER -