@articleMahnken_Steinmann_2002, title=A finite element algorithm for parameter identification of material models for fluid saturated porous media, volume=25, DOI=10.1002/nag.136, number=5, journal=International Journal for Numerical and Analytical Methods in Geomechanics, publisher=Wiley, author=Mahnken, Rolf and Steinmann, P., year=2002, pages=415–434