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@article{SF_1991__42_3_135063, author = {K. Auinger}, title = {Orthodox semigroups with complemented congruence lattices.}, journal = {Semigroup forum}, pages = {53--58}, publisher = {mathdoc}, volume = {42}, number = {3}, year = {1991}, zbl = {0716.20043}, url = {http://geodesic.mathdoc.fr/item/SF_1991__42_3_135063/} }
K. Auinger. Orthodox semigroups with complemented congruence lattices.. Semigroup forum, Tome 42 (1991) no. 3, pp. 53-58. http://geodesic.mathdoc.fr/item/SF_1991__42_3_135063/