M. M Meier, M Hubiak, D Matthia, M Wirtz and G. Reitz
Radiation Protection Dosimetry 136 ( 4 ): 251 - 255 , 2009
D Matthia, B Heber, G Reitz, L Sihver, T Berger and M. Meier
Radiation Protection Dosimetry 136 ( 4 ): 304 - 310 , 2009