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2. Yu. N. Rabotnov, L. Kh. Papernik, and E. N. Zvonov, Tables of the Fractional-Exponential Function of Negative Parameters and Its Integral [in Russian], Nauka, Moscow (1969).
3. R. M. Goldhoff, ?The application of Rabotnov's creep parameter,? Proc. Amer. Soc. Testing Materials,61 (1961).
4. E. N. Zvonov, N. I. Malinin, L. Kh. Papernik, and B. M. Tseitlin, ?Determination of the creep characteristics of linear elastic-hereditary materials by digital-computer methods,? MTT, No. 5 (1968).
5. E. A. Davis, ?Creep and relaxation of oxygen-free copper,? J. Appl. Mech.,10, No. 2 (1943).