David Avis Naoki Katoh Makoto Ohsaki Ileana Streinu Shin-ichi Tanigawa Enumerating Constrained Non-crossing Minimally Rigid Frameworks. 31-46 2008 40 Discrete & Computational Geometry 1 http://dx.doi.org/10.1007/s00454-007-9026-x db/journals/dcg/dcg40.html#AvisKOST08