@article{1102784217, author = {Porter, Jack R. and Woods, R. Grant}, title = {Ultra-Hausdorff $H$-closed extensions.}, journal = {Pacific J. Math.}, volume = {85}, number = {2}, year = {1979}, pages = { 399-411}, language = {en}, url = {http://dml.mathdoc.fr/item/1102784217} }
Porter, Jack R.; Woods, R. Grant. Ultra-Hausdorff $H$-closed extensions.. Pacific J. Math., Tome 85 (1979) no. 2, pp. 399-411. http://gdmltest.u-ga.fr/item/1102784217/