Do not show cite as if nothing to cite

diff --git a/iidtitlepage.sty b/iidtitlepage.sty
index f9019c42316306597ee2d05e11b013657cea741c..06912049ef3353af7a954183c8c51cab116b662d 100644 (file)
--- a/iidtitlepage.sty
+++ b/iidtitlepage.sty
@@ -93,8 +93,9 @@
             \noindent\nohyphens{\textbf{DOI:} \url{\@IidTitlePageDoi}}
         }
 
-
-        \noindent\nohyphens{\textbf{Cite as:} \bibentry{\@IidTitlePageCiteAs}}
+       \ifdef{\@IidTitlePageCiteAs}{
+       \noindent\nohyphens{\textbf{Cite as:} \bibentry{\@IidTitlePageCiteAs}}
+       }
 
 
         \ifdef{\@IidTitlePageSourceCodes}{