@article{10_1017_S0017089500002767,
     author = {Houghton, C. H.},
     title = {Embedding inverse semigroups in wreath products},
     journal = {Glasgow mathematical journal},
     pages = {77--82},
     year = {1976},
     volume = {17},
     number = {2},
     doi = {10.1017/S0017089500002767},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500002767/}
}