@article{10_1017_S0017089500005930,
     author = {Burgess, W. D.},
     title = {Completions of semilattices of cancellative semigroups},
     journal = {Glasgow mathematical journal},
     pages = {157--160},
     year = {1985},
     volume = {26},
     number = {2},
     doi = {10.1017/S0017089500005930},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500005930/}
}