@article{SF_1995__50_3_135394,
     author = {J.A. Dumesnil},
     title = {On t-semigroups.},
     journal = {Semigroup forum},
     pages = {383--388},
     publisher = {mathdoc},
     volume = {50},
     number = {3},
     year = {1995},
     zbl = {0876.20040},
     url = {http://geodesic.mathdoc.fr/item/SF_1995__50_3_135394/}
}