@article{MZM_1974_15_6_a7,
     author = {V. D. Ponomarev},
     title = {On local uniqueness of the solution of boundary-value problems},
     journal = {Matemati\v{c}eskie zametki},
     pages = {891--895},
     publisher = {mathdoc},
     volume = {15},
     number = {6},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1974_15_6_a7/}
}