Mertz etal 2009 demography of swidden
Dataset published in 2013 by
Ole Mertz,
Stephen J. Leisz,
Andreas Heinimann,
Kanok Rerkasem,
Thiha,
Wolfram Dressler,
Van Cu Pham,
Kim Chi Vu,
Dietrich Schmidt-Vogt,
Carol J. P. Colfer,
Michael Epprecht,
Christine Padoch,
Lesley Potter
