1. Alfrey, T. (1948) Mechanical Behaviour of High Polymers, Interscience, New York.
2. Axelrad, D. R. (1970) Mechanical models of relaxation phenomena. Adv. Mol. Relaxation Processes, 2, 41–68.
3. Bland, D. R. (1960) The Theory of Linear Viscoelasticity, Pergamon, New York.
4. Blatz, P. J. (1956) Rheology of composite solid propellants. J. Ind. Eng. Chem., 48(4), 727–729.
5. Boltzmann, L. (1874) Zür Theorie der elastichen Nachwirkung, Sitzungsber, Kaiserlich. Akad. Wiss. Wien, Math. Naturwiss. Kl., 70(2), 275–306.