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2012 · Kentaro Tanabe, Tetsuya Shiromizu, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 17
2013 · Ken-ichi Nakao, Tatsuya Uno, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 9
2004 · Shunichiro Kinoshita, Yuuiti Sendouda, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 9