TY  - RPRT
TI  - An optimization model for selecting training course locations, U.S. Geological Survey
AU  - Timothy A. Cohn
AU  - William G. Baier
PY  - 1993
DO  - 10.3133/ofr93123
UR  - https://pubs.usgs.gov/publication/ofr93123
ID  - ofr93123
ER  -