@techreport{oai:musashino-music.repo.nii.ac.jp:00000037,
 author = {Doll, Clemens},
 month = {Mar},
 note = {武蔵野音楽大学, 基盤研究(C):25370184},
 title = {The History and Future of the Five String Cello},
 year = {2016}
}