Ma, A., Roters, F., & Raabe, D. (2007). Introducing the Effect of Grain Boundaries into Crystal Plasticity FEM Using a Non Local Dislocation Density Based Constitutive Model. Theory and Application to FCC Bi-Crystals. Talk presented at Euromech Colloquium 463, MPI für Eisenforschung GmbH. Düsseldorf, Germany. 2007.