Schaller, M., Schroth, G., Beer, J., & Jiménez Otárola, F. (2003). Species and site characteristics that permit the association of fast-growing trees with crops: The case of Eucalyptus deglupta as coffee shade in Costa Rica.

Schaller, Michaela, Göetz Schroth, John Beer, و Francisco Jiménez Otárola. Species and Site Characteristics That Permit the Association of Fast-growing Trees With Crops: The Case of Eucalyptus Deglupta As Coffee Shade in Costa Rica. 2003.

Schaller, Michaela, Göetz Schroth, John Beer, و Francisco Jiménez Otárola. Species and Site Characteristics That Permit the Association of Fast-growing Trees With Crops: The Case of Eucalyptus Deglupta As Coffee Shade in Costa Rica. 2003.