Title of article :
The Natural Radiation Environment VII, Seventh International Symposium on the Natural Radiation Environment (NRE-VII), in: J.P. McLaughlin, E.S. Simopoulos, F. Steinhäusler (Eds.), Elsevier, Amsterdam (ISBN: 0-08-044137-8 (ISSN: 1569-4860), 2005 (1575pp.,
