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@article{SF_1972__5_133943, author = {K.H. Hofmann and A. Stralka}, title = {Push-outs and strict projective limits of semilattices.}, journal = {Semigroup forum}, pages = {243--261}, publisher = {mathdoc}, volume = {5}, year = {1972}, zbl = {0385.06003}, url = {http://geodesic.mathdoc.fr/item/SF_1972__5_133943/} }
K.H. Hofmann; A. Stralka. Push-outs and strict projective limits of semilattices.. Semigroup forum, Tome 5 (1972), pp. 243-261. http://geodesic.mathdoc.fr/item/SF_1972__5_133943/