@article{AIHPA_1965__3_1_13_0,
     author = {Biedenharn, L. C. and Nuyts, J. and Straumann, N.},
     title = {On the unitary representations of $SU(1, 1)$ and $SU(2, 1)$},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {13--39},
     publisher = {Gauthier-Villars},
     volume = {3},
     number = {1},
     year = {1965},
     mrnumber = {195478},
     zbl = {0137.25603},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1965__3_1_13_0/}
}