TY  - RPRT
TI  - Development of the USGS national land-cover database over two decades
AU  - George Z. Xian
AU  - Collin G. Homer
AU  - Limin Yang
PY  - 2011
DO  - 10.1201/b10599-26
UR  - https://pubs.usgs.gov/publication/70187151
ID  - 70187151
ER  -