@article{10_1017_S0017089500003736,
     author = {Koshitani, Shigeo},
     title = {Remarks on the commutativity of the radicals of group algebras},
     journal = {Glasgow mathematical journal},
     pages = {63--68},
     year = {1979},
     volume = {20},
     number = {1},
     doi = {10.1017/S0017089500003736},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003736/}
}