References

SQUARING THE MAGIC SQUARES OF ORDER 4


[1] W. S. Andrews, Magic Squares and Cubes, Dover Publications, New York, 1960.

[2] M. Bona, A new proof of the formula for the number of magic squares, Mathematics Magazine 70 (1997), 201-203.

[3] M. Bona, Introduction to Enumerative Combinatorics, McGraw Hill, 2007.

[4] Sir H. Bondi and Dame K. Ollerenshaw, Magic squares of order four, Phil. Trans. R. Soc. Lond. A 306 (1982), 443-532.

[5] J. Cilleruelo and F. Luca, On multiplicative magic squares, The Electronic Journal of Combinatorics 17, #N8, 2010.

[6] R. Descombes, Les Carrés Magiques, Vuibert, 2000.

[7] D. Friedman, Multiplicative magic squares, Mathematics Magazine 49(5) (1976), 249-250.

[8] C. Libis, J. D. Phillips and M. Spall, How many magic squares are there?, Mathematics Magazine 73 (2000), 57-58.

[9] Macalester College Problem of the Week, Nov. 30, 1994.

[10] L. Sallows, C. Libis, J. D. Phillips and S. Golomb, News and letters, Mathematics Magazine 73(4) (2000), 332-334.