@article{10_4064_fm_157_1_33_41, author = {Alan Dow}, title = {The regular open algebra of $\ensuremath{\beta}\mathbb R\setminus\mathbb R$ is not equal to the completion of $\mathcal P(\ensuremath{\omega})/{\rm fin}$}, journal = {Fundamenta Mathematicae}, pages = {33--41}, publisher = {mathdoc}, volume = {157}, number = {1}, year = {1998}, doi = {10.4064/fm-157-1-33-41}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-157-1-33-41/} }