1. Forest Europe. State of Europe’s Forests 2015 (Ministerial Conference on the Protection of Forests in Europe, 2015); https://foresteurope.org/state-europes-forests-2015-report/.
2. Grassi, G. et al. The key role of forests in meeting climate targets requires science for credible mitigation. Nat. Clim. Chang. 7, 220–226 (2017).
3. Masson-Delmotte, V. et al. (eds) IPCC 2018: Global Warming of 1.5 °C (Intergovernmental Panel on Climate Change, 2018); https://www.ipcc.ch/sr15.
4. Reid, W. V. et al. Ecosystems and Human Well-being – Synthesis: A Report of the Millennium Ecosystem Assessment (Island Press, 2005).
5. Duncker, P. et al. Classification of forest management approaches: a new conceptual framework and its applicability to European forestry. Ecol. Soc. 17, 51 (2012).