References

[1] S. W. Golomb, Polyominoes: Puzzles, Patterns, Problems, and Packings, 2nd ed., Princeton, NJ: Princeton University Press, 1996.

[2] Eric W. Weisstein. "Polyomino." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/Polyomino.html

[3] "The Poly Pages." (Feb 6, 2004) www.geocities.com/alclarke0/index.htm.

[4] M. Gardner, Time Travel and Other Mathematical Bewilderments, New York: W. H. Freeman & Co., 1987 pp. 175-187.

[5] N. J. A. Sloane. "The On-Line Encyclopedia of Integer Sequences." (Sep 2, 2004) www.research.att.com/~njas/sequences.

[6] N. J. A. Sloane and S. Plouffe, The Encyclopedia of Integer Sequences, San Diego: Academic Press, 1995.

[7] R. L. Graham, O. Ptashnik, and D. E. Knuth, Concrete Mathematics: A Foundation for Computer Science, Reading, MA: Addison-Wesley, 1989.

[8] T. P. Chu and R. Johnsonbaugh, "Tiling Boards with Triominoes," Journal of Recreational Mathematics, 18, 1985-1986 pp. 183-193.

[9] G. E. Martin, Polyominoes: A Guide to Puzzles and Problems in Tiling, Washington, DC: The Mathematical Association of America, 1996.

[10] D. A. Klarner, "Polyominoes" Handbook of Discrete and Computational Geometry, Boca Raton, FL: CRC Press, 1997 pp. 225-239.

[11] B. Brunbaum and G. C. Shephard, Tilings and Patterns, New York: W. H. Freeman & Co., 1987.

[12] R. Penrose, Shadows of the Mind: A Search for the Missing Science of Consciousness, Oxford: Oxford University Press, 1994.