TROTT KLAUS-RÜDIGER [red.] 299,352 Radiation exposure and occupational risks / contribu­- tors G. Keller [et al.] : ed. by Eberhard Scherer, Christian Streffer and Klaus-Rudiger Trott : forew. by Luther W. Brady [et al.]. - Berlin [etc.] : Sprin- ger-Verl., [1990]. - [12], 150 s. : il., wykr. ; 28 cm (Medical Radiology : Diagnostic Imaging and Radiatioi Oncology) ISBN 3-540-51174-1