@article{1183740257,
author = {Cutland, Nigel},
title = {$\mathbf{\Sigma}\_1$-Compactness in Languages Stronger than $\mathscr{L}\_A$},
journal = {J. Symbolic Logic},
volume = {43},
number = {1},
year = {1978},
pages = { 508-520},
language = {en},
url = {http://dml.mathdoc.fr/item/1183740257}
}
Cutland, Nigel. $\mathbf{\Sigma}_1$-Compactness in Languages Stronger than $\mathscr{L}_A$. J. Symbolic Logic, Tome 43 (1978) no. 1, pp. 508-520. http://gdmltest.u-ga.fr/item/1183740257/