@article{1082418544,
author = {Goncharov, Sergey S. and Harizanov, Valentina S. and Knight, Julia F. and Shore, Richard A.},
title = {P<sub>1</sub><sup>1</sup> relations and paths through O},
journal = {J. Symbolic Logic},
volume = {69},
number = {1},
year = {2004},
pages = { 585-611},
language = {en},
url = {http://dml.mathdoc.fr/item/1082418544}
}
Goncharov, Sergey S.; Harizanov, Valentina S.; Knight, Julia F.; Shore, Richard A. Π11 relations and paths through 𝒪. J. Symbolic Logic, Tome 69 (2004) no. 1, pp. 585-611. http://gdmltest.u-ga.fr/item/1082418544/