@article{GDZPPN001263331,
title = {On the weak permutation property.},
journal = {Semigroup forum},
volume = {48},
year = {1994},
pages = {253-254},
zbl = {0812.20035},
url = {http://dml.mathdoc.fr/item/GDZPPN001263331}
}
Kelarev, A.V. On the weak permutation property.. Semigroup forum, Tome 48 (1994) pp. 253-254. http://gdmltest.u-ga.fr/item/GDZPPN001263331/