Berberich, Eric Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Meyerovitch, Michal Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Berberich, E., & Meyerovitch, M.(2007). Computing Envelopes of Quadrics (ACS-TR-241402-03). Groningen, The Netherlands: University of Groningen.