@article{10_1017_S2040618500035334,
     author = {Howie, J. M. and Lallement, G.},
     title = {Certain fundamental congruences on a regular semigroup{\textdagger}},
     journal = {Glasgow mathematical journal},
     pages = {145--159},
     year = {1966},
     volume = {7},
     number = {3},
     doi = {10.1017/S2040618500035334},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S2040618500035334/}
}