deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 6048d67..ae21de9 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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title = {{Temporal dynamics of exchangeable K Ca and Mg in acidic bulk soil and rhizosphere under Norway spruce (Picea abies Karst.) and beech (Fagus sylvatica L.) stands}},  journal = {Plant Soil},  }  @article{Schmalenberger_2015,  doi = {10.1038/srep12187},  url = {http://dx.doi.org/10.1038/srep12187},  year = {2015},  month = {jul},  publisher = {Nature Publishing Group},  volume = {5},  pages = {12187},  author = {A. Schmalenberger and A. L. Duran and A. W. Bray and J. Bridge and S. Bonneville and L. G. Benning and M. E. Romero-Gonzalez and J. R. Leake and S. A. Banwart},  title = {{Oxalate secretion by ectomycorrhizal Paxillus involutus is mineral-specific and controls calcium weathering from minerals}},  journal = {Sci. Rep.},  }