@inproceedings{hdf-hdph-03
, author =      "Robert Hearn and Erik Demaine and Greg Frederickson"
, title =       "Hinged Dissection of Polygons is Hard"
, booktitle =   "Proc. 15th Canad. Conf. Comput. Geom."
, site =        "Halifax"
, year =        2003
, pages =       "98--102"
}