Heger Stefan, Portheine Frank, Ohnsorge Jörg A K, Schkommodau Erik, Radermacher Klaus
Aachen University of Technology, Helmholtz-Institute for Biomedical Engineering, Aachen, Germany.
IEEE Eng Med Biol Mag. 2005 Mar-Apr;24(2):85-95. doi: 10.1109/memb.2005.1411353.