TY - JOUR AU - V. G. Danilov AU - P. N. Zhevandrov TI - On Maslov's method for constructing combined asymptotics for $h$-pseudodifferential equations JO - Izvestiya. Mathematics PY - 1990 SP - 425 EP - 439 VL - 34 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_1990_34_2_a10/ LA - en ID - IM2_1990_34_2_a10 ER -