Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1967__26_2_115022, author = {Janowitz, M.F.}, title = {Residuated closure operators}, journal = {Portugaliae mathematica}, pages = {221--252}, publisher = {mathdoc}, volume = {26}, number = {2}, year = {1967}, mrnumber = {0249331}, zbl = {0204.02702}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1967__26_2_115022/} }
Janowitz, M.F. Residuated closure operators. Portugaliae mathematica, Tome 26 (1967) no. 2, pp. 221-252. http://geodesic.mathdoc.fr/item/PORMA_1967__26_2_115022/