Shao-Wen Wei, Yuan Zhong, Ke Yang et al.|Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology|2010
Ke Yang, Shao-Wen Wei, Yu-Xiao Liu et al.|Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology|2012