1. V. G. Gromov, ?The solution of boundary-value problems of viscoelasticity,? Mekhan. Polim., No. 6 (1967).
2. V. G. Gromov, ?The mathematical content of Volterra's principle in a boundary-value problem of viscoelasticity,? Prikl. Mat. i Mekhan.,35, No. 5 (1971).
3. E. Kamke, Handbook of Ordinary Differential Equations [Russian translation], Nauka, Moscow (1971).
4. T. G. Rogers and E. H. Lee, ?The cylinder problem in viscoelastic stress analysis,? Stanford Univ., Div. Engng. Mech. TR 138, June (1963).
5. E. C. Ting, ?Stress analysis for linear viscoelastic cylinders,? AIAA J.,8, No. 18 (1970).