@article{CMJ_2008_58_2_a7,
     author = {Chen, Huanyin},
     title = {Strong separativity over exchange rings},
     journal = {Czechoslovak Mathematical Journal},
     pages = {417--428},
     year = {2008},
     volume = {58},
     number = {2},
     mrnumber = {2411098},
     zbl = {1166.16002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2008_58_2_a7/}
}