@article{CTGDC_1987__28_3_173_0, author = {Acu\~na-Ortega, Osvaldo}, title = {Finite objects and extensional relations}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, volume = {28}, year = {1987}, pages = {173-181}, mrnumber = {923627}, zbl = {0632.18005}, language = {en}, url = {http://dml.mathdoc.fr/item/CTGDC_1987__28_3_173_0} }
Acuña-Ortega, Osvaldo. Finite objects and extensional relations. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 28 (1987) pp. 173-181. http://gdmltest.u-ga.fr/item/CTGDC_1987__28_3_173_0/
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