@article{10_4064_cm_23_2_199_202,
     author = {Ralph McKenzie},
     title = {$\ensuremath{\aleph}_1$-incompactness of {Z}},
     journal = {Colloquium Mathematicum},
     pages = {199--202},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1971},
     doi = {10.4064/cm-23-2-199-202},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-23-2-199-202/}
}