@article{1183733918,
author = {Levy, Azriel},
title = {A Generalization of Godel's Notion of Constructibility},
journal = {J. Symbolic Logic},
volume = {25},
number = {1},
year = {1960},
pages = { 147-155},
language = {en},
url = {http://dml.mathdoc.fr/item/1183733918}
}
Levy, Azriel. A Generalization of Godel's Notion of Constructibility. J. Symbolic Logic, Tome 25 (1960) no. 1, pp. 147-155. http://gdmltest.u-ga.fr/item/1183733918/