@article{CTGDC_2009__50_4_298_0, author = {Janelidze, Zurab}, title = {Closedness properties of internal relations, VI : approximate operations}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, volume = {50}, year = {2009}, pages = {298-319}, mrnumber = {2589620}, zbl = {1188.18002}, language = {en}, url = {http://dml.mathdoc.fr/item/CTGDC_2009__50_4_298_0} }
Janelidze, Zurab. Closedness properties of internal relations, VI : approximate operations. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 50 (2009) pp. 298-319. http://gdmltest.u-ga.fr/item/CTGDC_2009__50_4_298_0/
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