Langenbecks Archiv Fur Chirurgie. Supplement II, Verhandlungen Der Deutschen Gesellschaft Fur Chirurgie. Deutsche Gesellschaft Fur Chirurgie. Kongress|January 1, 1989
Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada|September 17, 2008
Langenbecks Archiv Fur Chirurgie. Supplement II, Verhandlungen Der Deutschen Gesellschaft Fur Chirurgie. Deutsche Gesellschaft Fur Chirurgie. Kongress|January 1, 1989
Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada|September 17, 2008