@article{CMJ_1999_49_4_a15,
     author = {Mecheri, Salah},
     title = {Commutants and derivation ranges},
     journal = {Czechoslovak Mathematical Journal},
     pages = {843--847},
     year = {1999},
     volume = {49},
     number = {4},
     mrnumber = {1746710},
     zbl = {1008.47038},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_1999_49_4_a15/}
}