TY  - RPRT
TI  - Techniques of trend analysis for monthly water quality data
AU  - Robert M. Hirsch
AU  - James R. Slack
AU  - Richard A. Smith
PY  - 2010
DO  - 10.1029/wr018i001p00107
UR  - https://pubs.usgs.gov/publication/70011649
ID  - 70011649
ER  -