@article{AIHPA_1980__32_1_73_0, author = {Charfi, Abdelwaheb}, title = {Sur les extensions et la cohomologie des repr\'esentations des groupes $H_n \, \wedge \, SO(n)$}, journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique}, pages = {73--90}, publisher = {Gauthier-Villars}, volume = {32}, number = {1}, year = {1980}, mrnumber = {574813}, zbl = {0468.22010}, language = {fr}, url = {http://www.numdam.org/item/AIHPA_1980__32_1_73_0/} }