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@article{SF_1984__30_134702, author = {T. Tamura}, title = {On chains whose power semigroups are lattices.}, journal = {Semigroup forum}, pages = {35--40}, publisher = {mathdoc}, volume = {30}, year = {1984}, zbl = {0528.06002}, url = {http://geodesic.mathdoc.fr/item/SF_1984__30_134702/} }
T. Tamura. On chains whose power semigroups are lattices.. Semigroup forum, Tome 30 (1984), pp. 35-40. http://geodesic.mathdoc.fr/item/SF_1984__30_134702/