1. Indoor Radon;APCA (Air Pollution Control Association),1986
2. Evaluation of the radiation protection research programmes (1980–1984 and 1985–1989);CEC (Commission of the European Communities);Report No 37. EUR 12145EN,1990
3. Results of the 3rd CEC intercomparison of active and passive detectors for the measurement of radon and radon decay products;CEC (Commission of the European Communities),1988
4. Über eine fernere Analogie in dem elektrischen Verhalten der natürlichen and der durch Bequerelstrahlen abnorm leitend gemachten Luft;Elster;Phys. Z.,1901
5. Lung cancer risk from indoor exposure to radon daughters;ICRP (Annals of the International Commission on Radiological Protection),1987