deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 74b04f5..132c065 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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month = {Sep},  pages = {n/a–n/a},  }  @article{Vagle_Farmer_1998,  title = {{A comparison of four methods for bubble size and void fraction measurements}},  volume = {23},  issn = {0364-9059},  url = {http://dx.doi.org/10.1109/48.701193},  doi = {10.1109/48.701193},  number = {3},  journal = {IEEE J. Oceanic Eng.},  publisher = {Institute of Electrical & Electronics Engineers (IEEE)},  author = {Vagle S. and Farmer, D.M.},  year = {1998},  month = {Jul},  pages = {211–222},  }