@article{03958130,
title = {A Helly number for unions of two boxes in },
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {8},
year = {1985},
pages = {267-273},
doi = {10.1155/S0161171285000291},
zbl = {0595.52011},
language = {en},
url = {http://dml.mathdoc.fr/item/03958130}
}
Breen, Marilyn. A Helly number for unions of two boxes in . International Journal of Mathematics and Mathematical Sciences, Tome 8 (1985) pp. 267-273. doi : 10.1155/S0161171285000291. http://gdmltest.u-ga.fr/item/03958130/