Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1993__43_2_a1, author = {Jasem, Milan}, title = {Weak isometries and direct decompositions of dually residuated lattice ordered semigroups}, journal = {Mathematica slovaca}, pages = {119--136}, publisher = {mathdoc}, volume = {43}, number = {2}, year = {1993}, mrnumber = {1274597}, zbl = {0782.06012}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1993__43_2_a1/} }
Jasem, Milan. Weak isometries and direct decompositions of dually residuated lattice ordered semigroups. Mathematica slovaca, Tome 43 (1993) no. 2, pp. 119-136. http://geodesic.mathdoc.fr/item/MASLO_1993__43_2_a1/