1 files changed, 10 insertions, 0 deletions
diff --git a/man/PEC_sw_drainage_UK.Rd b/man/PEC_sw_drainage_UK.Rd
index edb239e..c9f8ed4 100644
--- a/man/PEC_sw_drainage_UK.Rd
+++ b/man/PEC_sw_drainage_UK.Rd
@@ -34,6 +34,16 @@ published on the CRC website
 \examples{
 PEC_sw_drainage_UK(150, Koc = 100)
 }
+\references{
+HSE's Chemicals Regulation Division (CRD) Active substance
+  PECsw calculations (for UK specific authorisation requests)
+  \url{https://www.hse.gov.uk/pesticides/topics/pesticide-approvals/pesticides-registration/data-requirements-handbook/fate/active-substance-uk.htm}
+  accessed 2019-09-27
+
+  Drainage PECs Version 1.0 (2015) Spreadsheet published at
+  \url{https://www.hse.gov.uk/pesticides/topics/pesticide-approvals/pesticides-registration/data-requirements-handbook/fate/pec-tools-2015/PEC\%20sw-sed\%20(drainage).xlsx}
+  accessed 2019-09-27
+}
 \author{
 Johannes Ranke
 }