1. Yu. N. Rabotnov, Creep Problems in Structural Members, Elsevier (1969).
2. A. A. Il'yushin and B. E. Pobedra, Basic Mathematical Theory of Thermoviscoelasticity [in Russian], Moscow (1970).
3. A. R. Rzhanitsy, Some Problems in Mechanics of Systems Deformable in Time [in Russian], Moscow (1949).
4. N. Kh. Arutyunyan, Some Problems in the Theory of Creep [in Russian], Moscow-Leningrad (1952).
5. D. Blend, Theory of Linear Viscoelasticity [Russian translation], Moscow (1965).