Não informado. (1999). The Journal of Combinatorial Mathematics and Combinatorial Computing. Charles Babbage Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. The Journal of Combinatorial Mathematics and Combinatorial Computing. Winnipeg, Canada: Charles Babbage Research, 1999.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. The Journal of Combinatorial Mathematics and Combinatorial Computing. Charles Babbage Research, 1999.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.