@article{CMUC_1992__33_1_a1,
     author = {Kelarev, A. V.},
     title = {On the {Jacobson} radical of graded rings},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {21--24},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1992},
     mrnumber = {1173741},
     zbl = {0815.16025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1992__33_1_a1/}
}