TY - JOUR AU - V. T. Shevaldin TI - Approximation by local $L$-splines corresponding to a~linear differential operator of the second order JO - Trudy Instituta matematiki i mehaniki PY - 2006 SP - 195 EP - 213 VL - 12 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TIMM_2006_12_2_a16/ LA - ru ID - TIMM_2006_12_2_a16 ER -