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@article{SF_1997__54_2_135535, author = {J.O. Loyola}, title = {E-free objects in {E-vari\'et\'es} of inverse rings.}, journal = {Semigroup forum}, pages = {375--380}, publisher = {mathdoc}, volume = {54}, number = {2}, year = {1997}, zbl = {0880.20049}, url = {http://geodesic.mathdoc.fr/item/SF_1997__54_2_135535/} }
J.O. Loyola. E-free objects in E-variétés of inverse rings.. Semigroup forum, Tome 54 (1997) no. 2, pp. 375-380. http://geodesic.mathdoc.fr/item/SF_1997__54_2_135535/