@article{01596911,
title = {Flexible cross-polytopes in the Euclidean 4-space.},
journal = {Journal for Geometry and Graphics},
volume = {4},
year = {2000},
pages = {159-167},
zbl = {0977.52028},
language = {en},
url = {http://dml.mathdoc.fr/item/01596911}
}
Stachel, Hellmuth. Flexible cross-polytopes in the Euclidean 4-space.. Journal for Geometry and Graphics, Tome 4 (2000) pp. 159-167. http://gdmltest.u-ga.fr/item/01596911/