@article{CMJ_2009_59_1_a9,
     author = {Chen, Huanyin},
     title = {Clean matrices over commutative rings},
     journal = {Czechoslovak Mathematical Journal},
     pages = {145--158},
     year = {2009},
     volume = {59},
     number = {1},
     mrnumber = {2486621},
     zbl = {1224.15034},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2009_59_1_a9/}
}