@article{10_4153_CMB_1987_014_x,
     author = {Bell, H. E. and III, W. S. Martindale},
     title = {Centralizing {Mappings} of {Semiprime} {Rings}},
     journal = {Canadian mathematical bulletin},
     pages = {92--101},
     year = {1987},
     volume = {30},
     number = {1},
     doi = {10.4153/CMB-1987-014-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1987-014-x/}
}