1.
Grannell M.J., Griggs T.S., Stanton R.G., Whitehead C.A. On the covering number g 1 (4)(18). A Canadian journal of applied mathematics, computer science and statistics [Internet]. 2005 Jun. 9 [cited 2026 May 8];68. Available from: https://utilitasmathematica.com/index.php/Index/article/view/353