deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 25a9f84..5ec8444 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{New features of the Franck-Hertz experiment}},  journal = {Am. J. Phys.},  }  @BOOK {,  author = "Adrian C. Melissinos",  title = "Experiments in Modern Physics",  publisher = "Academic Press",  year = "2003",  edition = "second"  }