@article{01596906,
title = {Five spheres in mutual contact.},
journal = {Journal for Geometry and Graphics},
volume = {4},
year = {2000},
pages = {109-114},
zbl = {0974.51020},
language = {en},
url = {http://dml.mathdoc.fr/item/01596906}
}
Coxeter, H.S.M. Five spheres in mutual contact.. Journal for Geometry and Graphics, Tome 4 (2000) pp. 109-114. http://gdmltest.u-ga.fr/item/01596906/