Dimitrov, R. (1995) “Characterization of the effective computability in $\mathfrak{f}$-enumerations”, Ann. Sofia Univ. Fac. Math. and Inf, 87, pp. 61–72. Available at: https://ftl5.uni-sofia.bg./index.php/fmi/article/view/405 (Accessed: 24 November 2024).