Thorsten Bernholt Friedrich Eisenbrand Thomas Hofmeister Constrained Minkowski Sums: A Geometric Framework for Solving Interval Problems in Computational Biology Efficiently. 22-36 2009 42 Discrete & Computational Geometry 1 http://dx.doi.org/10.1007/s00454-009-9178-y db/journals/dcg/dcg42.html#BernholtEH09