diff --git a/.Rbuildignore b/.Rbuildignore
index c1ff430..ee7fd2d 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -5,3 +5,4 @@
 
 ### rsm-plots.R
 Readme.md
+old-ccd-bbd.R
diff --git a/DESCRIPTION b/DESCRIPTION
index 4263fcf..0071d00 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -16,4 +16,3 @@ Suggests: emmeans (> 1.3.5.1), Vdgraph, conf.design, DoE.base, FrF2
 Imports: estimability
 License: GPL(>=2)
 LazyLoad: yes
-LazyData: yes
diff --git a/NAMESPACE b/NAMESPACE
index ae6fb12..075daca 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -27,7 +27,8 @@ importFrom("stats",
            "sd", 
            "terms",
            "uniroot",
-           "update")
+           "update",
+           "weights")
      
 import(graphics)
 
@@ -72,8 +73,9 @@ S3method(persp, lm)
 # --- to make Ulrike's life easier...
 #export(.ccd.1.41, .bbd.1.41)
 
-export(".bbd.1.41", 
-       ".ccd.1.41", 
+export(
+#       ".bbd.1.41", 
+#       ".ccd.1.41", 
 #       "[.coded.data", 
        "as.coded.data", 
        "bbd", 
diff --git a/inst/CITATION b/inst/CITATION
index 1554abd..d17fdb4 100644
--- a/inst/CITATION
+++ b/inst/CITATION
@@ -1,19 +1,18 @@
 citHeader("To cite rsm in publications use:")
 
-citEntry(entry = "Article",
+bibentry(
+  bibtype      = "Article",
   title        = "Response-Surface Methods in {R}, Using {rsm}",
-  author       = personList(as.person("Russell V. Lenth")),
+  author       = person("Russell", "Lenth", role = c("cre", "aut")),
   journal      = "Journal of Statistical Software",
   year         = "2009",
   volume       = "32",
   number       = "7",
   pages        = "1--17",
   doi          = "10.18637/jss.v032.i07",
-
-  textVersion  =
-  paste("Russell V. Lenth (2009).",
-        "Response-Surface Methods in R, Using rsm.",
-        "Journal of Statistical Software, 32(7), 1-17.",
-        "DOI: 10.18637/jss.v032.i07")
+  textVersion  = paste("Russell V. Lenth (2009).",
+                    "Response-Surface Methods in R, Using rsm.",
+                    "Journal of Statistical Software, 32(7), 1-17.",
+                    "DOI: 10.18637/jss.v032.i07")
 )