@article{AIHPA_1968__9_4_327_0,
     author = {Limi\'c, N. and Niederle, J.},
     title = {Reduction of the most degenerate unitary irreductible representations of $SO_0 (m, n)$ when restricted to a non-compact rotation subgroup},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {327--355},
     publisher = {Gauthier-Villars},
     volume = {9},
     number = {4},
     year = {1968},
     mrnumber = {240240},
     zbl = {0172.27601},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1968__9_4_327_0/}
}