deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 9c2f112..e237c17 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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year = {1974},  publisher = {Acoustical Society of America},  }  @book{harvdict,  author = {Willi Apel},  title = {{Harvard Dictionary of Music, 2nd Revised and Enlarged Edition}},  publisher = {Belknap Press},  year = {1969},  isbn = {0435810006},  }