TY  - RPRT
TI  - Predicting rare plant occurrence in Great Smoky Mountains National Park, USA
AU  - John R. Boetsch
AU  - Frank T. van Manen
AU  - Joseph D. Clark
PY  - 2003
UR  - https://pubs.usgs.gov/publication/70170382
ID  - 70170382
ER  -