@article{DAN_1973_210_3_a3,
     author = {M. M. Lavrent'ev and A. L. Bukhgeim},
     title = {On a class of problems in integral geometry},
     journal = {Doklady Akademii Nauk},
     pages = {523--524},
     publisher = {mathdoc},
     volume = {210},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_210_3_a3/}
}