@article{bwmeta1.element.bwnjournal-article-fmv57i1p19bwm,
author = {E. Lopez-Escobar},
title = {An interpolation theorem for denumerably long formulas},
journal = {Fundamenta Mathematicae},
volume = {57},
year = {1965},
pages = {253-272},
zbl = {0137.00701},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv57i1p19bwm}
}
Lopez-Escobar, E. An interpolation theorem for denumerably long formulas. Fundamenta Mathematicae, Tome 57 (1965) pp. 253-272. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv57i1p19bwm/