@article{1093894362,
author = {Harris, John H.},
title = {Ordinal theory in a conservative extension of predicate calculus.},
journal = {Notre Dame J. Formal Logic},
volume = {12},
number = {1},
year = {1971},
pages = { 423-428},
language = {en},
url = {http://dml.mathdoc.fr/item/1093894362}
}
Harris, John H. Ordinal theory in a conservative extension of predicate calculus.. Notre Dame J. Formal Logic, Tome 12 (1971) no. 1, pp. 423-428. http://gdmltest.u-ga.fr/item/1093894362/