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@article{AIHPA_1971__14_4_295_0, author = {von Westenholz, C.}, title = {A group theoretical model for mass-splitting}, journal = {Annales de l'I.H.P. Physique th\'eorique}, pages = {295--308}, publisher = {Gauthier-Villars}, volume = {14}, number = {4}, year = {1971}, mrnumber = {287822}, zbl = {0222.20016}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AIHPA_1971__14_4_295_0/} }
von Westenholz, C. A group theoretical model for mass-splitting. Annales de l'I.H.P. Physique théorique, Tome 14 (1971) no. 4, pp. 295-308. http://geodesic.mathdoc.fr/item/AIHPA_1971__14_4_295_0/