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@article{SF_1992__45_3_135170, author = {B. Billhardt}, title = {On a wreath product embedding and idempotent pure congruences on inverse semigroups.}, journal = {Semigroup forum}, pages = {45--54}, publisher = {mathdoc}, volume = {45}, number = {3}, year = {1992}, zbl = {0769.20027}, url = {http://geodesic.mathdoc.fr/item/SF_1992__45_3_135170/} }
B. Billhardt. On a wreath product embedding and idempotent pure congruences on inverse semigroups.. Semigroup forum, Tome 45 (1992) no. 3, pp. 45-54. http://geodesic.mathdoc.fr/item/SF_1992__45_3_135170/