@article{1183746366,
author = {Solomon, Reed},
title = {$\Pi^1\_1 - CA\_0$ and Order Types of Countable Ordered Groups},
journal = {J. Symbolic Logic},
volume = {66},
number = {1},
year = {2001},
pages = { 192-206},
language = {en},
url = {http://dml.mathdoc.fr/item/1183746366}
}
Solomon, Reed. $\Pi^1_1 - CA_0$ and Order Types of Countable Ordered Groups. J. Symbolic Logic, Tome 66 (2001) no. 1, pp. 192-206. http://gdmltest.u-ga.fr/item/1183746366/