deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 7788661..f480c92 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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number = {52},  journal = {Proceedings of the National Academy of Sciences},  publisher = {Proceedings of the National Academy of Sciences},  author = {Fierer N. {Fierer, Noah  and Leff, J. W. and Adams, B. J. and Nielsen, U. N. and Bates, S. T. and Lauber, C. L. and Owens, S. and Gilbert, J. A. and Wall, D. H. and Caporaso, J. G.}, year = {2012},  month = {Dec},  pages = {21390–21395}, 
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number = {6158},  journal = {Science},  publisher = {American Association for the Advancement of Science (AAAS)},  author = {Fierer N. {Fierer, Noah  and Ladau, J. and Clemente, J. C. and Leff, J. W. and Owens, S. M. and Pollard, K. S. and Knight, R. and Gilbert, J. A. and McCulley, R. L.}, year = {2013},  month = {Nov},  pages = {621–624},