@article{SM_1999_190_11_a2,
     author = {V. V. Volchkov},
     title = {Injectivity sets of the {Pompeiu} transform},
     journal = {Sbornik. Mathematics},
     pages = {1607--1622},
     year = {1999},
     volume = {190},
     number = {11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1999_190_11_a2/}
}