V. W. Y Choi, C. K. M Ng, R. K. K Lam, M Janik, A Sorimachi, C Kranrod, D Nikezic, S Tokonami and K. N. Yu
Radiation Protection Dosimetry 141 ( 4 ): 404 - 407 , 2010
D Nikezic, V. M Markovic, D Krstic and P. K. N. Yu
Radiation Protection Dosimetry 141 ( 4 ): 428 - 431 , 2010