@article{1093887835,
author = {Green, Judy},
title = {Next $P$ admissible sets are of cofinality $\omega$.},
journal = {Notre Dame J. Formal Logic},
volume = {18},
number = {1},
year = {1977},
pages = { 175-176},
language = {en},
url = {http://dml.mathdoc.fr/item/1093887835}
}
Green, Judy. Next $P$ admissible sets are of cofinality $\omega$.. Notre Dame J. Formal Logic, Tome 18 (1977) no. 1, pp. 175-176. http://gdmltest.u-ga.fr/item/1093887835/