@article{10_4064_cm128_2_8,
     author = {Jeffrey Bergen and Piotr Grzeszczuk},
     title = {Skew derivations and the nil and prime radicals},
     journal = {Colloquium Mathematicum},
     pages = {229--236},
     publisher = {mathdoc},
     volume = {128},
     number = {2},
     year = {2012},
     doi = {10.4064/cm128-2-8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm128-2-8/}
}