Clark, D., Brown, S., Kicklighter, D., Chambers, J., Thomlinson, J., Ni, J., & Holland, E. (2001). Net primary production in tropical forests: An evaluation and synthesis of existing field data. Ecological Applications, 11, 371-384. doi:10.1890/1051-0761(2001)011[0371:NPPITF]2.0.CO;2