@article{05242340,
title = {Floor and roof function analogs of the Bell numbers.},
journal = {Integers},
volume = {7},
year = {2007},
zbl = {1195.11039},
language = {en},
url = {http://dml.mathdoc.fr/item/05242340}
}
Gould, H.W.; Quaintance, Jocelyn. Floor and roof function analogs of the Bell numbers.. Integers, Tome 7 (2007) . http://gdmltest.u-ga.fr/item/05242340/