Canopy cover estimation in miombo woodlands of Zambia: Comparison of Landsat 8 OLI versus RapidEye imagery using parametric, nonparametric, and semiparametric methods - Halperin, J.; LeMay, V.; Coops, N.; Verchot, Louis V.; Marshall, P.; Lochhead, K. (Elsevier, 2016)