1. R. G. Avkhadiev, “A special case of the Schwarz problem and some of its applications,” Trudy Sem. Kraev. Zadacham, Kazan. Univ., No. 15, 3–15 (1978).
2. R. G. Avkhadiev, “On an exterior inverse boundary value problem in Cartesian coordinates for a doubly connected domain,” Mariisk. Univ., Poshkar-Ola (1982). (Manuscript deposited at VINITI, Nov. 23, 1982, No. 5797-82 Dep.)
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5. F. G. Avkhadiev, “Radii of convexity and almost convexity of certain integral representations,” Mat. Zametki,7, No. 5, 581–592 (1970).