TY - JOUR AU - G. I. Shishkin TI - The first boundary value problem for a second order equation with small parameters multiplying the derivatives JO - Differencialʹnye uravneniâ PY - 1977 SP - 376 EP - 378 VL - 13 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1977_13_2_a20/ LA - ru ID - DE_1977_13_2_a20 ER -