1. J.A.T. Freitas, Hybrid-Trefftz Elements for Spectral Analysis of Incompressible Saturated Porous Media, Int Rept, ICIST, 2004.
2. M. Toma, Modelling of Hydrated Soft Tissues Using Hybrid-Trefftz Finite Elements, Ph.D. Thesis, Instituto Superior Técnico, Technical University of Lisbon, 2008.
3. J.A.T. Freitas, M. Toma, Hybrid-Trefftz stress elements for spectral analysis of incompressible biphasic media, Int. J. Numer. Methods Engrg., in press.
4. J.A.T. Freitas, M. Toma, Hybrid-Trefftz displacement elements for incompressible biphasic media: Part I – Formulation, submitted for publication.
5. M. Toma, J.A.T. Freitas, Hybrid-Trefftz displacement elements for incompressible biphasic media: Part II – Assessment, submitted for publication.