Burger A.P., Grun̈dlingh W.R., Van Vuuren J.H. Two combinatorial problems involving lottery schemes: Characterising solution set structures. A Canadian journal of applied mathematics, computer science and statistics [Internet]. 2008 May 9 [cited 2026 May 8];75. Available from: https://utilitasmathematica.com/index.php/Index/article/view/577