S. Herrmann, A. Jensen, M. Joswig, und B. Sturmfels. (2008)cite arxiv:0808.2383
Comment: 21 pages, 10 figures; rewritten proof of Theorem 4.4 (which was
Theorem 4.3 before) for clarification, several other minor corrections.
M. Develin, F. Santos, und B. Sturmfels. In "Discrete and Computational Geometry" (E. Goodman, J. Pach and E. Welzl, eds), MSRI Publications, Cambridge Univ. Press, 2005. ISBN-10: 0521848628, (2003)cite arxiv:math/0312114
Comment: 20 pages, 1 figure.