@article{bwmeta1.element.bwnjournal-article-fmv53i1p22bwm,
author = {W. Hanf},
title = {Incompactness in languages with infinitely long expressions},
journal = {Fundamenta Mathematicae},
volume = {53},
year = {1964},
pages = {309-324},
zbl = {0207.30201},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv53i1p22bwm}
}
Hanf, W. Incompactness in languages with infinitely long expressions. Fundamenta Mathematicae, Tome 53 (1964) pp. 309-324. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv53i1p22bwm/