1. Non-homogeneous stresses in viscoelastic media;Alfrey;Q. Appl. Math.,1944
2. Methods of representing the properties of viscoelastic materials;Alfrey;Q. Appl. Math.,1945
3. Boundary Element Methods in Engineering Science;Banerjee,1981
4. Variational and Lagrangian methods in viscoelasticity, deformation and flow of solids;Biot,1955
5. Zur theorie der elastischen nachwirkung, Sitzungsber;Boltzmann;Math. Naturwiss. Kl. Kaiserl Akad. Wiss.,1874