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菊池 務, 坪田 秀一. "23. X線画像のパワースペクトル解析とその応用 : 離散的フーリエ変換に於ける周期断続性の影響とその補正 : 北海道部会 : 画像技術." Japanese Journal of Radiological Technology 44.7 (1988) 791