TY - JOUR AU - V. A. Beloshapko TI - Singularly perturbed elliptic Dirichlet problem with three-band boundary layer JO - Modelirovanie i analiz informacionnyh sistem PY - 2017 SP - 280 EP - 287 VL - 24 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAIS_2017_24_3_a2/ LA - ru ID - MAIS_2017_24_3_a2 ER -