J. Beer

发表

E. Somarriba, J. Beer, R. Muschler, 2004, Agroforestry Systems.

F. DeClerck, M. Ibrahim, Rolando Cerda, 2012 .

G. Schroth, J. Beer, R. V. Kanten, 2005, Agroforestry Systems.

E. Somarriba, J. Beer, R. Muschler, 1997 .

F. Muñoz, J. Beer, Freddy Muñoz, 2004, Agroforestry Systems.

Jean-Michel Harmand, Celia A. Harvey, Eduardo Somarriba, 2003 .