@article{AIHPA_1970__13_1_77_0, author = {Str\"om, Staffan}, title = {Induced representations of the $(1 + 4)$ de {Sitter} group in an angular momentum basis and the decomposition of these representations with respect to representations of the {Lorentz} group}, journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique}, pages = {77--98}, publisher = {Gauthier-Villars}, volume = {13}, number = {1}, year = {1970}, mrnumber = {273930}, language = {en}, url = {http://www.numdam.org/item/AIHPA_1970__13_1_77_0/} }