@article{1183743402,
author = {Velleman, Dan},
title = {Partitioning Pairs of Countable Sets of Ordinals},
journal = {J. Symbolic Logic},
volume = {55},
number = {1},
year = {1990},
pages = { 1019-1021},
language = {en},
url = {http://dml.mathdoc.fr/item/1183743402}
}
Velleman, Dan. Partitioning Pairs of Countable Sets of Ordinals. J. Symbolic Logic, Tome 55 (1990) no. 1, pp. 1019-1021. http://gdmltest.u-ga.fr/item/1183743402/