@article{GDZPPN002484641,
title = {On Bounded Functions with a Finite Number of Negative Squares.},
journal = {Monatshefte f\"ur Mathematik},
volume = {99},
year = {1985},
pages = {223-234},
zbl = {0557.43004},
url = {http://dml.mathdoc.fr/item/GDZPPN002484641}
}
Sasvári, Zoltán. On Bounded Functions with a Finite Number of Negative Squares.. Monatshefte für Mathematik, Tome 99 (1985) pp. 223-234. http://gdmltest.u-ga.fr/item/GDZPPN002484641/