@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},
     year = {1993},
     volume = {43},
     number = {2},
     mrnumber = {1274597},
     zbl = {0782.06012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1993_43_2_a1/}
}