TY - JOUR AU - N. S. Grigor'eva TI - Short-wavelength asymptotic solution of the problem of a moving point source in a time-dependent inhomogeneous medium JO - Zapiski Nauchnykh Seminarov POMI PY - 1987 SP - 42 EP - 51 VL - 165 UR - http://geodesic.mathdoc.fr/item/ZNSL_1987_165_a5/ LA - ru ID - ZNSL_1987_165_a5 ER -