diff --git a/R/data.R b/R/data.R
index fd81c052b..b2bfdf39d 100644
--- a/R/data.R
+++ b/R/data.R
@@ -2,7 +2,7 @@
 #' @name movies_long
 #' @details Modified dataset from `{ggplot2movies}` package.
 #'
-#' The internet movie database, <https://imdb.com/>, is a website devoted
+#' The internet movie database (IMDB) is a website devoted
 #' to collecting movie data supplied by studios and fans. It claims to be the
 #' biggest movie database on the web and is run by amazon.
 #'
@@ -99,7 +99,12 @@
 #'     disgustingness).
 #'   - desire. The desire to kill an arthropod was indicated on a scale from 0 to 10.
 #'
-#' @source <https://www.sciencedirect.com/science/article/pii/S0747563213000277>
+#' @references
+#' Ryan, R. S., Wilde, M., & Crist, S. (2013). Compared to a small, supervised
+#' lab experiment, a large, unsupervised web-based experiment on a previously
+#' unknown effect has benefits that outweigh its potential costs. _Computers in
+#' Human Behavior_, _29_(4), 1295-1301.
+
 #'
 #' @examples
 #' dim(bugs_long)
diff --git a/man/bugs_long.Rd b/man/bugs_long.Rd
index f9533895e..4e0314cd5 100644
--- a/man/bugs_long.Rd
+++ b/man/bugs_long.Rd
@@ -19,9 +19,6 @@ disgustingness).
 \item desire. The desire to kill an arthropod was indicated on a scale from 0 to 10.
 }
 }
-\source{
-\url{https://www.sciencedirect.com/science/article/pii/S0747563213000277}
-}
 \usage{
 bugs_long
 }
@@ -39,4 +36,10 @@ dim(bugs_long)
 head(bugs_long)
 dplyr::glimpse(bugs_long)
 }
+\references{
+Ryan, R. S., Wilde, M., & Crist, S. (2013). Compared to a small, supervised
+lab experiment, a large, unsupervised web-based experiment on a previously
+unknown effect has benefits that outweigh its potential costs. \emph{Computers in
+Human Behavior}, \emph{29}(4), 1295-1301.
+}
 \keyword{datasets}
diff --git a/man/movies_long.Rd b/man/movies_long.Rd
index 5dff32800..47f2b6f9e 100644
--- a/man/movies_long.Rd
+++ b/man/movies_long.Rd
@@ -30,7 +30,7 @@ Movie information and user ratings from IMDB.com (long format).
 \details{
 Modified dataset from \code{{ggplot2movies}} package.
 
-The internet movie database, \url{https://imdb.com/}, is a website devoted
+The internet movie database (IMDB) is a website devoted
 to collecting movie data supplied by studios and fans. It claims to be the
 biggest movie database on the web and is run by amazon.
 }