@techreport{weko_91206_1,
   author	 = "保原伸弘",
   title	 = "昭和と平成における日本のヒット曲＝流行歌の音程・音域・イクタスと経済状況の関係の分析",
   year 	 = "2013",
   institution	 = "一橋大学経済研究所",
   number	 = "3",
   month	 = "mar"
}