TY - JOUR AU - L. A. Molotkov TI - Coefficients of reflection and refraction in the case of elastic-fluid systems JO - Zapiski Nauchnykh Seminarov POMI PY - 1976 SP - 154 EP - 167 VL - 62 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1976_62_a12/ LA - ru ID - ZNSL_1976_62_a12 ER -