@article{1183744750,
author = {Yang, Yue},
title = {The Thickness Lemma From $P\_- + I\sum\_1 + \urcorner B\sum\_2$},
journal = {J. Symbolic Logic},
volume = {60},
number = {1},
year = {1995},
pages = { 505-511},
language = {en},
url = {http://dml.mathdoc.fr/item/1183744750}
}
Yang, Yue. The Thickness Lemma From $P_- + I\sum_1 + \urcorner B\sum_2$. J. Symbolic Logic, Tome 60 (1995) no. 1, pp. 505-511. http://gdmltest.u-ga.fr/item/1183744750/