%0 conference lecture %@ %A Willumeit, R.,Schroeder, J.,Feyerabend, F.,Kamusewitz, H.,Schossig, M.,Clemens, H. %D 2003 %J 16th Aachen Colloquium on Biomaterials, BIOMAT 2003 %N %P %T Implant Surface Modification using Biological Multi-layer Systems %U %X