Nelson, Mark D., và c.s. “Consistency Of Forest Presence And Biomass Predictions Modeled Across Overlapping Spatial And Temporal Extents”. Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS), tập 3, số 2, Tháng Tám 2011, tr 102-113 (12), https://mcfns.com/index.php/Journal/article/view/3.14.