TY  - RPRT
TI  - Seven-year phenological record of the Alaskan ecoregions derived from advanced very high resolution radiometer normalized difference vegetation index data
AU  - Carl J. Markon
PY  - 2001
DO  - 10.3133/ofr0111
UR  - https://pubs.usgs.gov/publication/ofr0111
ID  - ofr0111
ER  -