@misc{ribeiro2015towards,
  title = {Towards the standardization and harmonization of world soil data 2015}
  author = {Ribeiro E, Batjes N.H, Mendes de Jesus etal},
  url = {http://www.isric.org/sites/default/files/isric_report_2015_03.pdf#page=46},
  year = {2015}
}