deletions | additions       diff --git a/bibliography/maser_references.bib b/bibliography/maser_references.bib  index cc2bddd..8b2326b 100644  --- a/bibliography/maser_references.bib  +++ b/bibliography/maser_references.bib 
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title = {{Radiative transfer in astronomical masers. I - The linear maser. {II} - Three-dimensional masers}},  journal = {{ApJ}},  }  @ARTICLE{Elitzur_1990_paperII,  author = {{Elitzur}, M.},  title = {{Radiative transfer in astronomical masers. II - Three-dimensional masers}},  journal = {\apj},  keywords = {masers, radiative transfer},  year = {1990},  month = {nov},  volume = {363},  pages = {638-646},  adsurl = {http://adsabs.harvard.edu/abs/1990ApJ...363..638E},  adsnote = {Provided by the SAO/NASA Astrophysics Data System},  }