TY  - RPRT
TI  - Phosphorus losses in production processes before the "crude ore" and "marketable production" entries in reported statistics
AU  - Roland W. Scholz
AU  - Friedrich-Wilhelm Wellmer
AU  - DeYoung
PY  - 2014
UR  - https://pubs.usgs.gov/publication/70140338
ID  - 70140338
ER  -