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Turner DP, Urbanski D, Bremer D, et al. A cross-biome comparison of daily light use efficiency for gross primary production. Global Change Biology. 2003;9:383 -395. doi:10.1046/j.1365-2486.2003.00573.x.

Turner DP, Cohen WB, Kennedy RE, Fassnacht KS, Briggs JM. Relationships between leaf area index and Landsat TM spectral vegetation indices across three temperate zone sites. Remote Sensing of the Environment. 1999;70:52 -68. doi:10.1016/S0034-4257(99)00057-7.