@article{CMUC_1992__33_3_a1,
     author = {Ullery, William},
     title = {A direct factor theorem for commutative group algebras},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {383--387},
     publisher = {mathdoc},
     volume = {33},
     number = {3},
     year = {1992},
     mrnumber = {1209281},
     zbl = {0794.16022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1992__33_3_a1/}
}