@article{CMUC_1989__30_4_a2,
     author = {Giovannitti, Anthony and Goeters, H. Pat and Metelli, Claudia},
     title = {Cobalanced exact sequences},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {637--641},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {1989},
     mrnumber = {1045891},
     zbl = {0693.20055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1989__30_4_a2/}
}