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[文献書誌] 柿元満: "Slowing-down of positronium in gases" Positron Annihilation,edited by L.Dorikens-Vanbraet,M.Dorikens and D.Segers(World Scientific,Singapore,1989). 737-739 (1989)
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[文献書誌] 柿元満: "Angular correlation study of positronium formation in Xenon." Positron Annihilation,edited by L.Dorikens-Vanbraet,M.Dorikens and D.Segers(World Scientific,Singapore,1989). 746-748 (1989)
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[文献書誌] 柿本満: "Ortho-para conversion of positronium in oxygen studied by the angular correlation method" Positron Annihilation,edited by L.Dorikens-Vanbraet,M.Dorikens and D.Segers(World Scientific,Singapore,1989). 755-757 (1989)
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[文献書誌] 兵頭俊夫: "Study of positronium states in KI by using magnetic field" Positron Annihilation,edited by L.Dorikens-Vanbraet,M.Dorikens and D.Segers(World Scientific,Singapore,1989). 845-847 (1989)
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[文献書誌] 兵頭俊夫: "Relaxation of the momentum distribution of free positronium atoms interacting with silica fine particles" Positron Annihilation,edited by L.Dorikens-Vanbraet,M.Dorikens and D.Segers(World Scientific,Singapore,1989). 878-880 (1989)
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[文献書誌] 兵頭俊夫: "Evidence for nonexistence of self-trapped positronium in KI at very low temperatures" Physical Review B. 40. 8037-8040 (1989)