@article{DAN_1957_112_6_a1,
     author = {N. Ya. Vilenkin and \`E. L. Akim and A. A. Levin},
     title = {The matrix elements of irreducible unitary representations of the group of {Euclidean} three-dimensional 
},
     journal = {Doklady Akademii Nauk},
     pages = {987--989},
     publisher = {mathdoc},
     volume = {112},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_112_6_a1/}
}