@article{CTGDC_1981__22_1_97_0,
     author = {Heath, Philip R. and Kamps, Klaus Heiner},
     title = {Groupoids, stability cokernel sequences and duality},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     pages = {97--104},
     publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS},
     volume = {22},
     number = {1},
     year = {1981},
     mrnumber = {609164},
     zbl = {0456.55012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CTGDC_1981__22_1_97_0/}
}