TY  - RPRT
TI  - Estimation of descriptive statistics for multiply censored water quality data
AU  - Dennis R. Helsel
AU  - Timothy A. Cohn
PY  - 2010
DO  - 10.1029/wr024i012p01997
UR  - https://pubs.usgs.gov/publication/70014353
ID  - 70014353
ER  -