@article{SF_1979__18_134358,
     author = {Y. Tirasupa},
     title = {Weakly factorizable inverse semigroups.},
     journal = {Semigroup forum},
     pages = {283--292},
     publisher = {mathdoc},
     volume = {18},
     year = {1979},
     zbl = {0439.20039},
     url = {http://geodesic.mathdoc.fr/item/SF_1979__18_134358/}
}