TY  - RPRT
TI  - Assessing browse trend at the landscape level Part 1: Preliminary steps and field survey
AU  - R.B. Keigley
AU  - M.R. Frisina
AU  - C.W. Fager
PY  - 2002
UR  - https://pubs.usgs.gov/publication/70025054
ID  - 70025054
ER  -