@article{DAN_1958_118_1_a0,
     author = {F. A. Berezin and F. I. Karpelevich},
     title = {Zonal spherical functions and {Laplace} operators on some symmetric spaces},
     journal = {Doklady Akademii Nauk},
     pages = {9--12},
     publisher = {mathdoc},
     volume = {118},
     number = {1},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_118_1_a0/}
}