@article{SF_1986__35_134859,
     author = {K.D. jr. Magill and P.R. Misra},
     title = {Ordering the local subsemigroups of a semigroup.},
     journal = {Semigroup forum},
     pages = {101--118},
     publisher = {mathdoc},
     volume = {35},
     year = {1986},
     zbl = {0615.20044},
     url = {http://geodesic.mathdoc.fr/item/SF_1986__35_134859/}
}