@article{IVM_1977_12_a20,
     author = {L. P. Shibasov},
     title = {Integral geometry on horospheres and hyperboloids in $\Phi${-Euclidean} spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {131--134},
     year = {1977},
     number = {12},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1977_12_a20/}
}