@article{DAN_1980_253_4_a20,
     author = {A. V. Berezin and A. A. Bogush and V. S. Otchik and F. I. Fedorov},
     title = {Matrix elements of the principal series of unitary representations of the de {Sitter} group in the 
},
     journal = {Doklady Akademii Nauk},
     pages = {857--859},
     publisher = {mathdoc},
     volume = {253},
     number = {4},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_253_4_a20/}
}