deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index f6f7f75..b363336 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{A Fourier transform infrared trace gas and isotope analyser for atmospheric applications}},  journal = {Atmos. Meas. Tech.},  }  @article{Vardag_2015,  doi = {10.5194/amt-8-579-2015},  url = {http://dx.doi.org/10.5194/amt-8-579-2015},  year = {2015},  publisher = {Copernicus {GmbH}},  volume = {8},  number = {2},  pages = {579--592},  author = {S. N. Vardag and S. Hammer and M. Sabasch and D. W. T. Griffith and I. Levin},  title = {{First continuous measurements of $\updelta$$\less$sup$\greater$18$\less$/sup$\greater$O-{CO}$\less$sub$\greater$2$\less$/sub$\greater$ in air with a Fourier transform infrared spectrometer}},  journal = {Atmos. Meas. Tech.},  }