TY - JOUR AU - A. S. Starkov TI - Asymptotic solution of a~two scales problem of wave-propagation with a~local degeneration point JO - Zapiski Nauchnykh Seminarov POMI PY - 1979 SP - 275 EP - 285 VL - 89 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1979_89_a20/ LA - ru ID - ZNSL_1979_89_a20 ER -