TY  - RPRT
TI  - A strategy for estimating tree canopy density using Landsat 7 ETM+ and high resolution images over large areas
AU  - Chengquan Huang
AU  - Limin Yang
AU  - Bruce K. Wylie
AU  - Collin G. Homer
PY  - 2001
UR  - https://pubs.usgs.gov/publication/70231710
ID  - 70231710
ER  -