@article{05029485,
title = {Asphericity of shadows of a convex body.},
journal = {Zapiski Nauchnykh Seminarov POMI},
volume = {321},
year = {2005},
pages = {67-78},
doi = {10.1007/s10958-007-0434-5},
zbl = {1151.52302},
language = {en},
url = {http://dml.mathdoc.fr/item/05029485}
}
Makeev, V.V. Asphericity of shadows of a convex body.. Zapiski Nauchnykh Seminarov POMI, Tome 321 (2005) pp. 67-78. doi : 10.1007/s10958-007-0434-5. http://gdmltest.u-ga.fr/item/05029485/