diff --git a/DESCRIPTION b/DESCRIPTION
index 394f7477fafcbb0564a2946fbf4fbb77da88e2fa..ac6e3e8312ec25dd9ac0a9cdcd01d924bfe6bca3 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -2,7 +2,7 @@ Package: bayesmeta
 Type: Package
 Title: Bayesian Random-Effects Meta-Analysis and Meta-Regression
 Version: 2.8
-Date: 2021-08-20
+Date: 2021-08-23
 Authors@R: c(person(given="Christian", family="Roever", role=c("aut","cre"), 
                     email="christian.roever@med.uni-goettingen.de",
                     comment=c(ORCID="0000-0002-6911-698X")),
diff --git a/man/NicholasEtAl2019.Rd b/man/NicholasEtAl2019.Rd
index f8b2ca62160ae3ea0269a03efd09b12e17922c80..3f932432d06f3d39cc7ef10d349d54fd088df461 100644
--- a/man/NicholasEtAl2019.Rd
+++ b/man/NicholasEtAl2019.Rd
@@ -24,12 +24,12 @@
   extracted from tables or Kaplan-Meier curves.
 }
 \source{R.S. Nicholas, E. Han, J. Raffel, J. Chataway, T. Friede.
-  \href{https://doi.org/10.1177/1352458518794063}{Over three decades
-    study populations in progressive multiple sclerosis have become
-    older and more disabled, but have lower on-trial progression rates:
-    A systematic review and meta-analysis of 43 randomised
-    placebo-controlled trials}.
+  Over three decades study populations in progressive multiple sclerosis
+  have become older and more disabled, but have lower on-trial
+  progression rates: A systematic review and meta-analysis of 43
+  randomised placebo-controlled trials.
   \emph{Multiple Sclerosis Journal}, \bold{25}(11):1462-1471, 2019.
+  \doi{10.1177/1352458518794063}.
 }
 \examples{
 # load data:
diff --git a/man/RobergeEtAl2017.Rd b/man/RobergeEtAl2017.Rd
index ae238baafd4395fcfd7bf4f8aba894d2e068fff0..1455bd21b4353ac4044e919d6f92c44ba06e259e 100644
--- a/man/RobergeEtAl2017.Rd
+++ b/man/RobergeEtAl2017.Rd
@@ -34,10 +34,11 @@
   and dose (in mg)) was also recorded for each study.
 }
 \source{S. Roberge, K. Nicolaides, S. Demers, J. Hyett, N. Chaillet, E. Bujold.
-  \href{https://doi.org/10.1016/j.ajog.2016.09.076}{The role of aspirin
-    dose on the prevention of preeclampsia and fetal growth restriction:
-    systematic review and meta-analysis}.
-  \emph{American Journal of Obstetrics & Gynecology}, \bold{216}(2):110-120, 2017.
+  The role of aspirin dose on the prevention of preeclampsia and fetal
+  growth restriction: systematic review and meta-analysis.
+  \emph{American Journal of Obstetrics & Gynecology},
+  \bold{216}(2):110-120, 2017.
+  \doi{10.1016/j.ajog.2016.09.076}.
 }
 \seealso{
   \code{\link{bmr}}, \code{\link[metafor]{escalc}},
diff --git a/man/bayesmeta-package.Rd b/man/bayesmeta-package.Rd
index a020bb60d7a08a0e8977dac637f67e64fc082114..4847ef35aa3a84bef2a7ced86a1c1b6066ff8223 100644
--- a/man/bayesmeta-package.Rd
+++ b/man/bayesmeta-package.Rd
@@ -17,7 +17,7 @@
     Package: \tab bayesmeta\cr
     Type:    \tab Package\cr
     Version: \tab 2.8\cr
-    Date:    \tab 2021-08-20\cr
+    Date:    \tab 2021-08-23\cr
     License: \tab GPL (>=2)
   }
   The main functionality is provided by the \code{\link{bayesmeta}()}
diff --git a/man/bmr.Rd b/man/bmr.Rd
index 2b1d20314286d329f4b25a94b45e259bbb2285d4..82e6691a5468d78d36acac62f9bb292f2eca5271 100644
--- a/man/bmr.Rd
+++ b/man/bmr.Rd
@@ -321,25 +321,25 @@
   }
 \references{
   C. Roever.
-  \href{https://www.doi.org/10.18637/jss.v093.i06}{Bayesian random-effects meta-analysis using the bayesmeta R package}.
+  Bayesian random-effects meta-analysis using the bayesmeta R package.
   \emph{Journal of Statistical Software}, \bold{93}(6):1-51, 2020.
+  \doi{10.18637/jss.v093.i06}.
 
   C. Roever, R. Bender, S. Dias, C.H. Schmid, H. Schmidli, S. Sturtz,
   S. Weber, T. Friede.
   On weakly informative prior distributions for the heterogeneity
   parameter in Bayesian random-effects meta-analysis.
-  \emph{\href{https://arxiv.org/abs/2007.08352}{arXiv preprint 2007.08352}}
-  (submitted for publication), 2020.
+  \emph{Research Synthesis Methods}, \bold{12}(4):448-474, 2021.
+  \doi{10.1002/jrsm.1475}.
   
   C. Roever, T. Friede.
-  \href{https://doi.org/10.1080/10618600.2016.1276840}{Discrete
-  approximation of a mixture distribution via restricted divergence}.
+  Discrete approximation of a mixture distribution via restricted divergence.
   \emph{Journal of Computational and Graphical Statistics},
   \bold{26}(1):217-222, 2017.
+  \doi{10.1080/10618600.2016.1276840}.
 
   A. Gelman, J.B. Carlin, H.S. Stern, D.B. Rubin. \emph{Bayesian data
   analysis}. Chapman & Hall / CRC, Boca Raton, 1997.
-  
 }
 \author{
   Christian Roever \email{christian.roever@med.uni-goettingen.de}
diff --git a/man/kldiv.Rd b/man/kldiv.Rd
index 7a8fdc60972e51c02c6545a533357eab4c292e38..e1e0c8cce8d1652b7d2a416470e72bf8d5faf25f 100644
--- a/man/kldiv.Rd
+++ b/man/kldiv.Rd
@@ -40,10 +40,10 @@
   John Wiley and Sons, New York, 1959.
 
   C. Roever, T. Friede.
-  \href{https://doi.org/10.1080/10618600.2016.1276840}{Discrete
-  approximation of a mixture distribution via restricted divergence}.
+  Discrete approximation of a mixture distribution via restricted divergence.
   \emph{Journal of Computational and Graphical Statistics},
-  \bold{26}(1):217-222, 2017.  
+  \bold{26}(1):217-222, 2017.
+  \doi{10.1080/10618600.2016.1276840}.
 }
 \author{
   Christian Roever \email{christian.roever@med.uni-goettingen.de}