@article{1183742328, author = {Dougherty, Randall}, title = {Sequential Discreteness and Clopen-$I$-Boolean Classes}, journal = {J. Symbolic Logic}, volume = {52}, number = {1}, year = {1987}, pages = { 232-242}, language = {en}, url = {http://dml.mathdoc.fr/item/1183742328} }
Dougherty, Randall. Sequential Discreteness and Clopen-$I$-Boolean Classes. J. Symbolic Logic, Tome 52 (1987) no. 1, pp. 232-242. http://gdmltest.u-ga.fr/item/1183742328/