The Size of Spanning Disks for Polygonal CurvesJoel Hass, Jack Snoeyink, William P. ThurstonDiscrete & Computational Geometry2003

ar X iv : m at h / 99 06 19 7 v 1 [ m at h . G T ] 2 8 Ju n 19 99 The size of spanning disks for polygonal knots .Joel Hass, Jack Snoeyink, William P. Thurston1999

The Number of Reidemeister Moves Needed for Unknotting the Number of Reidemeister Moves Needed for UnknottingJoel Hass1998