@article{mussak_laarman_1989, title={FARMERS PRODUCTION OF TIMBER TREES IN THE CACAO-COFFEE REGION OF COASTAL ECUADOR}, volume={9}, ISSN={["0167-4366"]}, DOI={10.1007/BF00168260}, number={2}, journal={AGROFORESTRY SYSTEMS}, author={MUSSAK, MF and LAARMAN, JG}, year={1989}, pages={155–170} }
 @article{mussack_laarman_1988, title={Farmers' production of timber trees in the cacao-coffee region of coastal Ecuador}, number={36}, journal={Working Paper (Forestry Private Enterprise Initiative)}, publisher={Forestry Private Enterprise Initiative, Southeastern Center for Forest Economics Research}, author={Mussack, M. and Laarman, J. G.}, year={1988}, pages={28} }
 @article{mussack_1988, title={Socioeconomic diagnosis of agroforestry systems of cacao, coffee and shade trees used for wood production in coastal Ecuador / Diagnostico socio-economico de los sistemas agroforestales de cacao, cafe y arboles de sombra utilizados en la produccion de mad}, number={35}, journal={Working Paper (Forestry Private Enterprise Initiative)}, publisher={Forestry Private Enterprise Initiative, Southeastern Center for Forest Economics Research}, author={Mussack, M.}, year={1988}, pages={99} }