PT Journal AU Späth, M Herrmann, C Prajapati, N Schneider, D Schwab, F Selzer, M Nestler, B TI Multiphase-field modelling of crack propagation in geological materials and porous media with Drucker-Prager plasticity SO Computational geosciences PY 2020 DI 10.1007/s10596-020-10007-0 LA english ER