@article{10_1017_S0017089500003955,
     author = {Burgess, W. D.},
     title = {Completions of semilattices of cancellative semigroups},
     journal = {Glasgow mathematical journal},
     pages = {29--37},
     year = {1980},
     volume = {21},
     number = {1},
     doi = {10.1017/S0017089500003955},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003955/}
}