@article{1093887728,
author = {Harper, Judith M. and Rubin, Jean E.},
title = {Variations of Zorn's lemma, principles of cofinality, and Hausdorff's maximal principle. I. Set forms.},
journal = {Notre Dame J. Formal Logic},
volume = {17},
number = {1},
year = {1976},
pages = { 565-588},
language = {en},
url = {http://dml.mathdoc.fr/item/1093887728}
}
Harper, Judith M.; Rubin, Jean E. Variations of Zorn's lemma, principles of cofinality, and Hausdorff's maximal principle. I. Set forms.. Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, pp. 565-588. http://gdmltest.u-ga.fr/item/1093887728/