@article{10_1017_S0017089500003840,
     author = {Hall, T. E. and Munn, W. D.},
     title = {Semigroups satisfying minimal conditions {II}},
     journal = {Glasgow mathematical journal},
     pages = {133--140},
     year = {1979},
     volume = {20},
     number = {2},
     doi = {10.1017/S0017089500003840},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003840/}
}