Add citations to the DESCRIPTION

4 files changed, 17 insertions, 7 deletions

diff --git a/DESCRIPTION b/DESCRIPTION
index 2364ee75..8f243796 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -14,9 +14,14 @@ Description: Calculation routines based on the FOCUS Kinetics Report (2006,
   2014).  Includes a function for conveniently defining differential equation
   models, model solution based on eigenvalues if possible or using numerical
   solvers.  If a C compiler (on windows: 'Rtools') is installed, differential
-  equation models are solved using automatically generated C functions.  Please
-  note that no warranty is implied for correctness of results or fitness for a
-  particular purpose.
+  equation models are solved using automatically generated C functions.
+  Heteroscedasticity can be taken into account using variance by variable or
+  two-component error models as described by Ranke and Meinecke (2018)
+  <doi:10.3390/environments6120124>.  Interfaces to several nonlinear
+  mixed-effects model packages are available, some of which are described by
+  Ranke et al. (2021) <doi:10.3390/environments8080071>.  Please note that no
+  warranty is implied for correctness of results or fitness for a particular
+  purpose.
 Depends: R (>= 2.15.1), parallel
 Imports: stats, graphics, methods, deSolve, R6, inline (>= 0.3.19), numDeriv,
   dplyr, lmtest, pkgbuild, nlme (>= 3.1-151), purrr, saemix, nlmixr
diff --git a/docs/dev/index.html b/docs/dev/index.html
index ddfce971..8b0b2386 100644
--- a/docs/dev/index.html
+++ b/docs/dev/index.html
@@ -16,9 +16,14 @@
   2014).  Includes a function for conveniently defining differential equation
   models, model solution based on eigenvalues if possible or using numerical
   solvers.  If a C compiler (on windows: Rtools) is installed, differential
-  equation models are solved using automatically generated C functions.  Please
-  note that no warranty is implied for correctness of results or fitness for a
-  particular purpose.">
+  equation models are solved using automatically generated C functions.
+  Heteroscedasticity can be taken into account using variance by variable or
+  two-component error models as described by Ranke and Meinecke (2018)
+  &lt;doi:10.3390/environments6120124&gt;.  Interfaces to several nonlinear
+  mixed-effects model packages are available, some of which are described by
+  Ranke et al. (2021) &lt;doi:10.3390/environments8080071&gt;.  Please note that no
+  warranty is implied for correctness of results or fitness for a particular
+  purpose.">
 <meta name="robots" content="noindex">
 <!-- mathjax --><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js" integrity="sha256-nvJJv9wWKEm88qvoQl9ekL2J+k/RWIsaSScxxlsrv8k=" crossorigin="anonymous"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/config/TeX-AMS-MML_HTMLorMML.js" integrity="sha256-84DKXVJXs0/F8OTMzX4UR909+jtl4G7SPypPavF+GfA=" crossorigin="anonymous"></script><!--[if lt IE 9]>
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diff --git a/docs/dev/pkgdown.yml b/docs/dev/pkgdown.yml
index ab5aae58..b987dcf7 100644
--- a/docs/dev/pkgdown.yml
+++ b/docs/dev/pkgdown.yml
@@ -11,7 +11,7 @@ articles:
   web_only/benchmarks: benchmarks.html
   web_only/compiled_models: compiled_models.html
   web_only/dimethenamid_2018: dimethenamid_2018.html
-last_built: 2021-07-29T09:41Z
+last_built: 2021-07-29T10:35Z
 urls:
   reference: https://pkgdown.jrwb.de/mkin/reference
   article: https://pkgdown.jrwb.de/mkin/articles
diff --git a/docs/dev/reference/Rplot001.png b/docs/dev/reference/Rplot001.png
index 17a35806..48f53a2a 100644
--- a/docs/dev/reference/Rplot001.png
+++ b/docs/dev/reference/Rplot001.png