@article{DCG_1992__8_1_131227,
     author = {S.M. Malitz and J.I. Malitz},
     title = {A {Cone} of {Inhomogeneous} {Second-Order} {Polynomials.}},
     journal = {Discrete & computational geometry},
     pages = {387--416},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1992},
     zbl = {0762.51007},
     url = {http://geodesic.mathdoc.fr/item/DCG_1992__8_1_131227/}
}