1. Yu. N. Rabotnov, Creep of Structural Elements [in Russian], Nauka, Moscow, ch. 3, 1966.
2. S. L Meshkov, ?Description of internal friction in the hereditary theory of elasticity by means of kernels with a weak singularity,? PMTF, No.4, 1967.
3. S. I. Meshkov, and Yu. A. Rossikhin, ?Propagation of acoustic waves in an hereditary-elastic medium,? PMTF, No. 5, 1968.
4. Yu. N. Rabotnov, ?Equilibrium of an elastic medium with aftereffect,? PMM,12, No. 1, 1948.
5. M. I. Rozovskii, and E. S. Sinaiskii, ?Vibrations of an oscillator with hereditary creep,? PMM,30, No. 3, 1966.