@article{1183746545,
author = {Hjorth, Greg},
title = {A Boundedness Lemma for Iterations},
journal = {J. Symbolic Logic},
volume = {66},
number = {1},
year = {2001},
pages = { 1058-1072},
language = {en},
url = {http://dml.mathdoc.fr/item/1183746545}
}
Hjorth, Greg. A Boundedness Lemma for Iterations. J. Symbolic Logic, Tome 66 (2001) no. 1, pp. 1058-1072. http://gdmltest.u-ga.fr/item/1183746545/