@article{00767411,
title = {Convex hulls of spatial polygons with a fixed convex projection.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {36},
year = {1995},
pages = {123-134},
zbl = {0819.52011},
language = {en},
url = {http://dml.mathdoc.fr/item/00767411}
}
Dekster, Boris V. Convex hulls of spatial polygons with a fixed convex projection.. Beiträge zur Algebra und Geometrie, Tome 36 (1995) pp. 123-134. http://gdmltest.u-ga.fr/item/00767411/