@techreport{oai:ir.soken.ac.jp:00002677,
 author = {ヨトヴァ, マリヤ イヴァノヴァ and YOTOVA, Mariya Ivanova},
 issue = {1},
 month = {Jul},
 note = {40016844293, application/pdf},
 title = {ブルガリアのヨーグルト食文化をめぐる人工物発達学的調査},
 year = {2009}
}