1. High indoor radon concentration in an alpine region of western Tyrol;Ennemoser;Health Phys.,1994
2. Unusually high indoor radon concentrations from a giant rock slide;Ennemoser;Sci. Total Environ.,1994
3. Richtwerte für die Radonkonzentration in Innenräumen. Österreichische Strahlenschutzkommission, Bundesministerium für Gesundheit, Sport und Konsumentenschutz, Wien, 1992
4. Commission Recommendation of 21 February 1990 on the protection of the public against indoor exposure to radon;Official J. Eur. Commun. Ser. L,1990
5. The Radon Book – Measures against Radon;Clavensjö,1994