TY - JOUR AU - R. G. Avkhadiev TI - Nonuniqueness of the solution of inverse boundary value problems that reduce to fundamental ones JO - Trudy seminara po kraevym zadačam PY - 1976 SP - 5 EP - 12 VL - 13 IS - 13 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUKZ_1976_13_13_a0/ LA - ru ID - KUKZ_1976_13_13_a0 ER -