@article{SF_1994__48_3_135302,
     author = {K.D. jr. Magill},
     title = {Magnifying elements of transformation semigroups.},
     journal = {Semigroup forum},
     pages = {119--126},
     year = {1994},
     volume = {48},
     number = {3},
     zbl = {0805.20050},
     url = {http://geodesic.mathdoc.fr/item/SF_1994__48_3_135302/}
}