deletions | additions       diff --git a/bibliography/maser_references.bib b/bibliography/maser_references.bib  index 28348ec..abcc77d 100644  --- a/bibliography/maser_references.bib  +++ b/bibliography/maser_references.bib 
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title = {{The 18 centimeter {OH} emission of {IC} 4553 (Arp 220)}},  journal = {{ApJ}},  }  @article{Darling_2007,  doi = {10.1086/523756},  url = {http://dx.doi.org/10.1086/523756},  year = {2007},  month = {oct},  publisher = {{IOP} Publishing},  volume = {669},  number = {1},  pages = {L9--L12},  author = {Jeremy Darling},  title = {{A Dense Gas Trigger for {OH} Megamasers}},  journal = {{ApJ}},  }