@article{DAN_1967_176_5_a6,
     author = {M. M. Lavrent'ev and Yu. E. Anikonov},
     title = {A certain class of problems in integral geometry},
     journal = {Doklady Akademii Nauk},
     pages = {1002--1003},
     publisher = {mathdoc},
     volume = {176},
     number = {5},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_176_5_a6/}
}