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@article{SF_1971__2_133834, author = {D.W. Hardy and M.R. Brown and R.J. Painter}, title = {An embedding theorem for weakly inverse semigroups.}, journal = {Semigroup forum}, pages = {332--335}, publisher = {mathdoc}, volume = {2}, year = {1971}, zbl = {0238.20085}, url = {http://geodesic.mathdoc.fr/item/SF_1971__2_133834/} }
D.W. Hardy; M.R. Brown; R.J. Painter. An embedding theorem for weakly inverse semigroups.. Semigroup forum, Tome 2 (1971), pp. 332-335. http://geodesic.mathdoc.fr/item/SF_1971__2_133834/