@article{1102812439,
author = {Kunen, K. and Roitman, J.},
title = {Attaining the spread at cardinals of cofinality $\omega $.},
journal = {Pacific J. Math.},
volume = {73},
number = {2},
year = {1977},
pages = { 199-205},
language = {en},
url = {http://dml.mathdoc.fr/item/1102812439}
}
Kunen, K.; Roitman, J. Attaining the spread at cardinals of cofinality $\omega $.. Pacific J. Math., Tome 73 (1977) no. 2, pp. 199-205. http://gdmltest.u-ga.fr/item/1102812439/