---
- doi: 10.1073/pnas.0705414105
  identifier: 10.1073/pnas.0705414105
  journal_identifier: proceedings-national-academy-of-sciences-united-states-america
  journal_pages: 1786-1793
  journal_vol: 105
  notes: ~
  title: Tipping elements in the Earth's climate system
  uri: /article/10.1073/pnas.0705414105
  url: ~
  year: 2008
- doi: 10.1111/j.1365-2486.2006.01305.x
  identifier: 10.1111/j.1365-2486.2006.01305.x
  journal_identifier: global-change-biology
  journal_pages: 679-706
  journal_vol: 13
  notes: ~
  title: Modelling the role of agriculture for the 20th century global terrestrial carbon balance
  uri: /article/10.1111/j.1365-2486.2006.01305.x
  url: ~
  year: 2007