Roces-Diaz, José V., Emilio R. Díaz-Varela, Marcos Barrio-Anta, and Pedro Álvarez-Álvarez. 2018. “Sweet Chestnut Agroforestry Systems in North-Western Spain: Classification, Spatial Distribution and an Ecosystem Services Assessment”. Forest Systems 27 (1), e03S. https://doi.org/10.5424/fs/2018271-11973.