M. Nieke, C. Seidl, and S. Schuster. Proceedings of the Tenth International Workshop on Variability Modelling of Software-intensive Systems, page 73--80. New York, NY, USA, ACM, (2016)
M. Gronke, M. Dijkstra, M. McCourt, and S. Oh. (2017)cite arxiv:1704.06278Comment: 18 pages, 21 figures; submitted to A&A; animations available at http://bit.ly/a-in-a-fog.
S. Herrmann, A. Jensen, M. Joswig, and 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.