@article{00767400,
title = {Spaces of stresses, projections and parallel drawings for spherical polyhedra.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {35},
year = {1994},
pages = {259-281},
zbl = {0819.52018},
language = {en},
url = {http://dml.mathdoc.fr/item/00767400}
}
Crapo, Henry; Whiteley, Walter. Spaces of stresses, projections and parallel drawings for spherical polyhedra.. Beiträge zur Algebra und Geometrie, Tome 35 (1994) pp. 259-281. http://gdmltest.u-ga.fr/item/00767400/