1. Vekua I.N. Obobshchennye analiticheskie funktsii [Generalized Analytic Functions]. Moscow, Nauka, 1988. 512 p. (In Russian)
2. Timergaliev S.N. On existence of solutions of nonlinear equilibrium problems on shallow inhomogeneous anisotropic shells of the Timoshenko type. Russ. Math., 2019, vol. 63, no. 8, pp. 38–53. doi: 10.3103/S1066369X1908005X.
3. Timergaliev S.N. On the solvability of nonlinear boundary value problems for the system of differential equations of equilibrium of shallow anisotropic Timoshenko-type shells with free edges. Differ. Equations, 2021, vol. 57, no. 4, pp. 488–506. doi: 10.1134/s0012266121040066.
4. Mikhailov L.G. Novye klassy osobykh integral’nykh uravnenii i ego primeneniya k differentsial’nym uravneniyam s singulyarnymi koeffitsientami [New Classes of Special Integral Equations and Their Application to Differential Equations with Singular Coefficients]. Dushanbe, Akad. Nauk Tadzh. SSR, 1963. 183 p. (In Russian)
5. Rajabov N.R. Integral’nye predstavlenie i granichnye zadachi dlya nekotorykh differentsial’nykh uravnenii s singulyarnoi liniei ili s singulyarnymi poverkhnostyami Integral Representations and Boundary Value Problems for Some Differential Equations with a Singular Line or Singular Surfaces]. Pt. I. Dushanbe, TGU, 1980. 126 p. (In Russian)