@article{GDZPPN000367109,
title = {Problems of Distance Geometry and Convex Properties of Quadratic Maps.},
journal = {Discrete \& computational geometry},
volume = {13},
year = {1995},
pages = {189-202},
zbl = {0829.05025},
url = {http://dml.mathdoc.fr/item/GDZPPN000367109}
}
Barvinok, A.I. Problems of Distance Geometry and Convex Properties of Quadratic Maps.. Discrete & computational geometry, Tome 13 (1995) pp. 189-202. http://gdmltest.u-ga.fr/item/GDZPPN000367109/