M. Prandtstetter, G. Raidl, P. Schüller:
"Reconstructing Sheets of Manually Torn Paper";
Talk: 11th International Workshop on Combinatorial Optimization, Aussois, Frankreich; 2007-01-08 - 2007-01-12.
http://publik.tuwien.ac.at/files/pub-inf_4608.pdf