TY - JOUR AU - B. P. Belinskii TI - On the uniqueness and non-uniqueness of solutions of boundary-contact acoustic problems JO - Zapiski Nauchnykh Seminarov POMI PY - 1983 SP - 21 EP - 32 VL - 128 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZNSL_1983_128_a2/ LA - ru ID - ZNSL_1983_128_a2 ER -