deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index d3e189c..3888bad 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
...
title = {{Acidification and alkalinization of soils}},  journal = {Plant Soil},  }  @article{Oades_1988,  doi = {10.1007/bf02180317},  url = {http://dx.doi.org/10.1007/bf02180317},  year = {1988},  month = {feb},  publisher = {Springer Science $\mathplus$ Business Media},  volume = {5},  number = {1},  pages = {35--70},  author = {J. M. Oades},  title = {{The retention of organic matter in soils}},  journal = {Biogeochemistry},  }