Radiation Protection Dosimetry 134 ( 2 ): 107 - 112 , 2009
C Li, B. B Sadi, G Moodie, J. N Daka, E. P. C Lai and G. H. Kramer
Radiation Protection Dosimetry 136 ( 2 ): 82 - 86 , 2009
Radiation Protection Dosimetry 142 ( 1 ): 33 - 35 , 2010
Radiation Protection Dosimetry 142 ( 1 ): 51 - 53 , 2010