Bibliografia

Principal

• Approximation of elliptic boundary-value problems: J P Aubin 1972 Wiley Interscience
• On spectral theory of elliptic operators: Y. Egorov, V. Kondratiev 1996 Birkhauser
• Mathematical theory of elastic and elasto-plastic bodies: an introduction: J. Necas, I. Hlavacek 1980 Elsevier. Studies in Applied Mechanics

Secundária

• Nonlinear partial differential equations for scientists and engineers: L Debnath 1997 Birkhauser
• Boundary value problems of applied mathematics: J L Troutman, M Bautista 1994 PWS Publ.