1.
Nenov N. On the (3,4)-Ramsey graphs without 9-cliques. Ann. Sofia Univ. Fac. Math. and Inf. [Internet]. 1993 Dec. 12 [cited 2024 Nov. 24];85:71-8. Available from: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/456