@article{1183739724,
author = {Catlin, Seth},
title = {ED-Regressive Sets of Order $n$},
journal = {J. Symbolic Logic},
volume = {41},
number = {1},
year = {1976},
pages = { 146-152},
language = {en},
url = {http://dml.mathdoc.fr/item/1183739724}
}
Catlin, Seth. ED-Regressive Sets of Order $n$. J. Symbolic Logic, Tome 41 (1976) no. 1, pp. 146-152. http://gdmltest.u-ga.fr/item/1183739724/