Rusev, P. (1997) “Zeroes of polynomials and entire functions in the works of N. Obreshkoff”, Ann. Sofia Univ. Fac. Math. and Inf, 89, pp. 37–46. Available at: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/353 (Accessed: 24 November 2024).