@article{MM2_1975__15_154307,
     author = {Sudarshan K. Sehgal},
     title = {Nilpotent {Elements} in {Group} {Rings.}},
     journal = {Manuscripta mathematica},
     pages = {65--80},
     publisher = {mathdoc},
     volume = {15},
     year = {1975},
     zbl = {0302.16010},
     url = {http://geodesic.mathdoc.fr/item/MM2_1975__15_154307/}
}