1. Christian Boyer, Les premiers carrés tétra et pentamagiques,Pour La Science, N°286, August 2001, 98-102
2. Christian Boyer, Some notes on the magic squares of squares problem,The Mathematical Intelligencer,27(Spring 2005), 52–64
3. Christian Boyer, Letter—Magic squares,Mathematics Today,42(April 2006), 70
4. Christian Boyer, Les ancêtres français du Sudoku,Pour La Science, N°344, June 2006, 8-11 & 89
5. Christian Boyer, Multimagic squares web site, with some Sudoku pages, www. multimagie.com/indexengl.htm