Incremental methods in nonlinear, three-dimensional, incompressible elasticity Robert Nzengwa (1988) ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
Interior and exterior solutions for boundary value problems in composite elastic and viscous media. Jain, D.L., Kanwal, R.P. (1985) International Journal of Mathematics and Mathematical Sciences