deletions | additions       diff --git a/bibliography/maser_references.bib b/bibliography/maser_references.bib  index e9e6f25..d7f38e3 100644  --- a/bibliography/maser_references.bib  +++ b/bibliography/maser_references.bib 
...
@article{Elitzur_1991,  doi = {10.1086/169632}, {10.1086/169827},  url = {http://dx.doi.org/10.1086/169632}, {http://dx.doi.org/10.1086/169827},  year = {1991},  month = {jan}, {mar},  publisher = {{IOP} Publishing},  volume = {367}, {370},  pages = {333}, {407},  author = {Moshe Elitzur and Christopher F. McKee and David J. Hollenbach}, Elitzur},  title = {{Radiative transfer in {{Polarization of  astronomical masers. {III} - Filamentary masers}}, maser radiation}},  journal = {{ApJ}},  }