deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index 3548b38..04ad01e 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
...
year = {1926},  pages = {73},  }  @article{Dijkstra_2002,  doi = {10.1007/s10021-001-0082-4},  url = {http://dx.doi.org/10.1007/s10021-001-0082-4},  year = {2002},  month = {jun},  publisher = {Springer Science $\mathplus$ Business Media},  volume = {5},  number = {4},  pages = {385--398},  author = {Feike A. Dijkstra and Mark M. Smits},  title = {{Tree Species Effects on Calcium Cycling: The Role of Calcium Uptake in Deep Soils}},  journal = {Ecosystems},  }