National socioeconomic surveys in forestry: Guidance and survey modules for measuring the multiple roles of forests in household welfare and livelihoods - Bakkegaard, R.Y.; Agrawal, A.; Animon, I.; Hogarth, N.J.; Miller, D.C.; Persha, L.; Rametsteiner, E.; Wunder, Sven; Zezza, A. (2016)