@article{SF_1979__18_134351,
     author = {C.C. Edwards},
     title = {The {Structure} of ...-unipotent semigroups.},
     journal = {Semigroup forum},
     pages = {189--200},
     publisher = {mathdoc},
     volume = {18},
     year = {1979},
     zbl = {0426.20055},
     url = {http://geodesic.mathdoc.fr/item/SF_1979__18_134351/}
}