TY  - RPRT
TI  - OPR-PPR, a computer program for assessing data importance to model predictions using linear statistics
AU  - Matthew J. Tonkin
AU  - Claire R. Tiedeman
AU  - D. Matthew Ely
AU  - Mary C. Hill
PY  - 2007
DO  - 10.3133/tm6e2
UR  - https://pubs.usgs.gov/publication/tm6E2
ID  - tm6E2
ER  -