@article{CTGDC_1996__37_2_82_0, author = {Ageron, Pierre}, title = {Effective taxonomies and crossed taxonomies}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, volume = {37}, year = {1996}, pages = {82-90}, mrnumber = {1394504}, zbl = {0859.18002}, language = {en}, url = {http://dml.mathdoc.fr/item/CTGDC_1996__37_2_82_0} }
Ageron, Pierre. Effective taxonomies and crossed taxonomies. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 37 (1996) pp. 82-90. http://gdmltest.u-ga.fr/item/CTGDC_1996__37_2_82_0/
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