TY  - RPRT
TI  - Great Plains ecosystems: Past, present, and future
AU  - F. B. Samson
AU  - F.L. Knopf
AU  - W.R. Ostlie
PY  - 2004
DO  - 10.2193/0091-7648(2004)32[6:gpeppa]2.0.co;2
UR  - https://pubs.usgs.gov/publication/1015222
ID  - 1015222
ER  -