@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}, volume = {22}, year = {1981}, pages = {97-104}, mrnumber = {609164}, zbl = {0456.55012}, language = {en}, url = {http://dml.mathdoc.fr/item/CTGDC_1981__22_1_97_0} }
Heath, Philip R.; Kamps, Klaus Heiner. Groupoids, stability cokernel sequences and duality. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 22 (1981) pp. 97-104. http://gdmltest.u-ga.fr/item/CTGDC_1981__22_1_97_0/
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