@article{10_14712_1213_7243_2015_268, author = {Dow, Alan and Shelah, Saharon}, title = {Asymmetric tie-points and almost clopen subsets of $\mathbb {N}^*$}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {451--466}, publisher = {mathdoc}, volume = {59}, number = {4}, year = {2018}, doi = {10.14712/1213-7243.2015.268}, mrnumber = {3914712}, zbl = {06997362}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.268/} }