1.
Bryant, Darryn, Grannell, Mike, Griggs, Terry. Large sets of large sets of Steiner triple systems of order 9. A Canadian journal of applied mathematics, computer science and statistics [Internet]. 2003 Jun. 9 [cited 2026 Jul. 9];64. Available from: https://utilitasmathematica.com/index.php/Index/article/view/285