1. Gol’dberg A. A., Some questions of the theory of distribution of values of meromorphic functions, in: G. Wittich, Latest Investigations on Single-Valued Analytic Functions, Fizmatgiz, Moscow (1960). (in Russian).
2. Gol’dberg A. A., Ostrovskii I. V., Value Distribution of Meromorphic Functions, Providence: AMS, 2008. (Translated from Russian ed. Moscow, Nauka, 1970).
3. Dektyarev I.M., Averaged deficiencies of holomorphic curves and divisors with an excessive deficiency value, Russian Mathematical Surveys, 44 (1989), №1, 237–238. https://doi.org/10.1070/RM1989v044n01ABEH002015
4. Mori S., Topics on meromorphic mappings and defects, Complex Var. Elliptic Equ., 56 (2011), №1-4, 363–373. https://doi.org/10.1080/17476930903394903
5. Petrenko V. P., Entire curves. Kharkiv: Vyshcha shkola, 1984.