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Kasahara. K, 18th ICRC Vo1.5 (1983), 283.[2] Amenomori. M et al., Proc, Inter. Sym. Cosmic Ray and Particle Physics, 1984 Tokyo 76.[3] China-Japan EC Collaboration, 20th ICRC Vo1.5 (1987), 316,[4] 太田周，宇宙簇研究，Vo1.24 No.2 (1980), 147.
Kasahara. K, 18th ICRC Vo1.5 (1983), 283.[2] Amenomori. M et al., Proc, Inter. Sym. Cosmic Ray and Particle Physics, 1984 Tokyo 76.[3] China-Japan EC Collaboration, 20th ICRC Vo1.5 (1987), 316,[4] 太田周，宇宙簇研究，Vo1.24 No.2 (1980), 147.