“COMPUTATION OF THE VERTEX FOLKMAN NUMBERS $F(2, 2, 2, 3; 5)$ AND $F(2, 3, 3; 5)$”, Ann. Sofia Univ. Fac. Math. and Inf., vol. 95, pp. 71–82, Dec. 2003, Accessed: Dec. 14, 2025. [Online]. Available: https://annual.uni-sofia.bg/index.php/fmi/article/view/177