1. K. Eriksson. Splitting a polygon into two congruent pieces. The American Mathematical Monthly, 103(5):393–400, 1996.
2. M. Gardner. Mathematical Games, Scientific American, volume 237, pages 132–137, 1977.
3. M. Gardner. My Best Mathematical and Logic Puzzles. Math & Logic Puzzles. Dover, 1994.
4. G. Rote. Some thoughts about decomposition of a polygon into two congruent pieces. unfinished draft, http://page.mi.fu-berlin.de/rote/Papers/pdf/Decomposition+of+a+polytope+into+two+congruent+pieces.pdf , 1997.
5. T. Fevens, J. Iacono, D. El-Khechen, and G. Rote. Partitioning a polygon into two congruent pieces. In Kyoto International Conference on Computational Geometry and Graph Theory, Kyoto CGGT2007, Kyoto, Japan, 2007.