@article{TAC_2017_32_a43, author = {Abdelkrim Aliouche and Carlos Simpson}, title = {Approximate categorical structures}, journal = {Theory and applications of categories}, pages = {1522--1562}, publisher = {mathdoc}, volume = {32}, year = {2017}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TAC_2017_32_a43/} }