Miroslaw Janik, Shinji Tokonami, Tibor Kovacs, Norbert Kavasi, Chutima Kranrod, Atsuyuki Sorimachi, Hiroyuki Takahashi, Nobuyuki Miyahara and Tetsuo Ishikawa
Applied Radiation and Isotopes 67 ( 9 ): 1691 - 1696 , 2009