@article{IVM_1994_8_a0,
     author = {F. G. Avkhadiev and S. B. Shabalina},
     title = {Zeros of coefficients of transformations and conditions for the solvability of inverse boundary value problems},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--10},
     publisher = {mathdoc},
     number = {8},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1994_8_a0/}
}