@article{CMUC_1990__31_3_a3,
     author = {Trlifaj, Jan},
     title = {Direct finiteness of group rings - a simple proof of the {Kaplansky's} conjecture for finite groups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {427--429},
     publisher = {mathdoc},
     volume = {31},
     number = {3},
     year = {1990},
     mrnumber = {1078476},
     zbl = {0711.16019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1990__31_3_a3/}
}