deletions | additions       diff --git a/bibliography/maser_references.bib b/bibliography/maser_references.bib  index 5fe19b0..5ebac77 100644  --- a/bibliography/maser_references.bib  +++ b/bibliography/maser_references.bib 
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author = {Malcolm Gray},  title = {{Maser Sources in Astrophysics}},  }  @book{2004,  doi = {10.1002/9783527618675},  url = {http://dx.doi.org/10.1002/9783527618675},  year = {2004},  month = {nov},  publisher = {Wiley-Blackwell},  editor = {Steven W. Stahler and Francesco Palla},  title = {{The Formation of Stars}},  }