@article{10_4153_CJM_1972_036_3,
     author = {Goldrich, Fredric E. and Wigner, Eugene P.},
     title = {Condition that {All} {Irreducible} {Representations} of a {Compact} {Lie} {Group,} if {Restricted} to a {Subgroup,} {Contain} no {Representation} {More} than {Once}},
     journal = {Canadian journal of mathematics},
     pages = {432--438},
     year = {1972},
     volume = {24},
     number = {3},
     doi = {10.4153/CJM-1972-036-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-036-3/}
}