@article{CTGDC_1994__35_3_249_0, author = {Kock, Anders and Reyes, Gonzalo E.}, title = {Relatively boolean and De Morgan toposes and locales}, journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques}, volume = {35}, year = {1994}, pages = {249-261}, mrnumber = {1295120}, zbl = {0806.18002}, language = {en}, url = {http://dml.mathdoc.fr/item/CTGDC_1994__35_3_249_0} }
Kock, Anders; Reyes, Gonzalo E. Relatively boolean and De Morgan toposes and locales. Cahiers de Topologie et Géométrie Différentielle Catégoriques, Tome 35 (1994) pp. 249-261. http://gdmltest.u-ga.fr/item/CTGDC_1994__35_3_249_0/
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