TY - JOUR AU - A. B. Vasil'eva TI - On the solution of singular perturbed problems having boundary layer of spike type JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 1995 SP - 109 EP - 122 VL - 1 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_1995_1_1_a4/ LA - ru ID - FPM_1995_1_1_a4 ER -