@article{CMJ_2003_53_3_a15,
     author = {Marcos, J. E.},
     title = {A completion of $\mathbb{Z}$ is a field},
     journal = {Czechoslovak Mathematical Journal},
     pages = {689--706},
     year = {2003},
     volume = {53},
     number = {3},
     mrnumber = {2000063},
     zbl = {1080.54500},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2003_53_3_a15/}
}