@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/