TY - JOUR AU - V. I. Vasyunin TI - On non-stationary interpretation of the eflection coefficient JO - Zapiski Nauchnykh Seminarov POMI PY - 1974 SP - 17 EP - 29 VL - 39 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1974_39_a2/ LA - ru ID - ZNSL_1974_39_a2 ER -