Diffusion akantu (bugfix/69-segmentation-fault-caused-by-model-applybc-aka-fromtraction-trac-traction) Change
rAKA/extra_packages/extra-materials/src/material_viscoelastic/material_stiffness_proportional.cc
rAKA/extra_packages/extra-materials/src/material_viscoelastic/material_stiffness_proportional.cc