@article{02216468,
title = {Conic sections in space defined by intersection conditions.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {46},
year = {2005},
pages = {301-309},
zbl = {1090.51007},
language = {en},
url = {http://dml.mathdoc.fr/item/02216468}
}
Schröcker, Hans-Peter. Conic sections in space defined by intersection conditions.. Beiträge zur Algebra und Geometrie, Tome 46 (2005) pp. 301-309. http://gdmltest.u-ga.fr/item/02216468/