@article{10_4153_CMB_1979_042_0,
     author = {Kovacs, Amos},
     title = {On {Derivations} in {Prime} {Rings} and a {Question} of {Herstein}},
     journal = {Canadian mathematical bulletin},
     pages = {339--344},
     year = {1979},
     volume = {22},
     number = {3},
     doi = {10.4153/CMB-1979-042-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-042-0/}
}