@article{10_21136_CMJ_1955_100131, author = {\v{S}ik, Franti\v{s}ek}, title = {Die {Anwendung} der {Polarit\"at} auf die direkten {Produktzerlegungen} einer {Gruppe}}, journal = {Czechoslovak Mathematical Journal}, pages = {61--75}, publisher = {mathdoc}, volume = {05}, number = {1}, year = {1955}, doi = {10.21136/CMJ.1955.100131}, mrnumber = {0073594}, zbl = {0068.01502}, language = {ge}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1955.100131/} }