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Sánchez-Azofeifa A, Rivard B, Wright J, Feng JL, Li P, Chong MM, Bohlman SA.Sánchez-Azofeifa A, et al. Among authors: rivard b.Sensors (Basel). 2011;11(4):3831-51. doi: 10.3390/s110403831. Epub 2011 Mar 30.Sensors (Basel). 2011.PMID: 22163825Free PMC article.
Kalacska M, Sanchez-Azofeifa GA, Rivard B, Calvo-Alvarado JC, Quesada M.Kalacska M, et al. Among authors: rivard b.J Environ Manage. 2008 Jul;88(2):348-59. doi: 10.1016/j.jenvman.2007.03.015. Epub 2007 May 1.J Environ Manage. 2008.PMID: 17475393