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diff --git a/man/HS.solution.Rd b/man/HS.solution.Rd
index 343f83f0..f72df23b 100644
--- a/man/HS.solution.Rd
+++ b/man/HS.solution.Rd
@@ -7,10 +7,21 @@
HS.solution(t, parent_0, k1, k2, tb)
}
\arguments{
+\item{t}{Time.}
+
+\item{parent_0}{Starting value for the response variable at time zero.}
+
+\item{k1}{First kinetic constant.}
+
+\item{k2}{Second kinetic constant.}
+
\item{tb}{Break point. Before this time, exponential decline according to
\code{k1} is calculated, after this time, exponential decline proceeds
according to \code{k2}.}
}
+\value{
+The value of the response variable at time \code{t}.
+}
\description{
Function describing two exponential decline functions with a break point
between them.
@@ -20,6 +31,18 @@ between them.
plot(function(x) HS.solution(x, 100, 2, 0.3, 0.5), 0, 2, ylim=c(0,100))
}
+\references{
+FOCUS (2006) \dQuote{Guidance Document on Estimating Persistence
+ and Degradation Kinetics from Environmental Fate Studies on Pesticides in
+ EU Registration} Report of the FOCUS Work Group on Degradation Kinetics,
+ EC Document Reference Sanco/10058/2005 version 2.0, 434 pp,
+ \url{http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics}
+FOCUS (2014) \dQuote{Generic guidance for Estimating Persistence
+ and Degradation Kinetics from Environmental Fate Studies on Pesticides in
+ EU Registration} Report of the FOCUS Work Group on Degradation Kinetics,
+ Version 1.1, 18 December 2014
+ \url{http://esdac.jrc.ec.europa.eu/projects/degradation-kinetics}
+}
\seealso{
Other parent solutions:
\code{\link{DFOP.solution}()},

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