TY - JOUR AU - E. P. Ushakova TI - Upper estimates for the approximation numbers of the generalized Laplace transform JO - Informatics and Automation PY - 2013 SP - 267 EP - 287 VL - 283 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2013_283_a17/ LA - ru ID - TRSPY_2013_283_a17 ER -