Authors: Zell, L Hellwig, D Sommerfeld, A Ukena, D Buchter, A Kirsch, CM

Citation: L. Zell et al., Silicotic callosity or lung cancer? Problem of functional differentiation by FDG-PET scan, NUKLEARMED, 39(3), 2000, pp. N35-N38

Authors: Zell, L Sommerfeld, A Buchter, A

Citation: L. Zell et al., Paget-Schoetter's Syndrome - 100th anniversary of the death of Sir James Paget and 50th anniversary of the syndrome's naming, DEUT MED WO, 124(31-32), 1999, pp. 948-951

Authors: Sommerfeld, A

Citation: A. Sommerfeld, History of lubrication (Reprinted from Lubrication Engineering, January 1955), LUBRIC ENG, 55(12), 1999, pp. 12-12