@article{bwmeta1.element.bwnjournal-article-fmv132i1p9bwm,
author = {Saharon Shelah and Juris Steprans},
title = {Non-trivial homeomorphisms of $\beta$NNwithout the continuum hypothesis},
journal = {Fundamenta Mathematicae},
volume = {132},
year = {1989},
pages = {135-141},
zbl = {0693.54003},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv132i1p9bwm}
}
Shelah, Saharon; Steprans, Juris. Non-trivial homeomorphisms of βNNwithout the continuum hypothesis. Fundamenta Mathematicae, Tome 132 (1989) pp. 135-141. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv132i1p9bwm/