diff --git a/src/Doc/Demo_Easychair/document/root.tex b/src/Doc/Demo_Easychair/document/root.tex
--- a/src/Doc/Demo_Easychair/document/root.tex
+++ b/src/Doc/Demo_Easychair/document/root.tex
@@ -1,31 +1,30 @@
 \documentclass[a4paper,11pt]{easychair}
 \usepackage{amssymb}
-\usepackage{hyperref}\urlstyle{rm}
 
 \usepackage{isabelle,isabellesym}\isabellestyle{it}
 
 \isadroptag{theory}
 \isafoldtag{proof}
 
 
 \begin{document}
 
 \title{Isabelle document preparation with Easychair style}
 \titlerunning{Easychair style}
 \author{Makarius Wenzel}
 \authorrunning{M. Wenzel}
 \institute{\url{https://sketis.net}}
 \maketitle
 
 \begin{abstract}
 Isabelle is a formal document preparation system. This example shows how to
 use it together with the Easychair style. See
 \url{https://easychair.org/publications/for_authors} for further information.
 \end{abstract}
 
 \input{session}
 
 \bibliographystyle{abbrv}
 \bibliography{root}
 
 \end{document}
diff --git a/src/Doc/Demo_LIPIcs/document/root.tex b/src/Doc/Demo_LIPIcs/document/root.tex
--- a/src/Doc/Demo_LIPIcs/document/root.tex
+++ b/src/Doc/Demo_LIPIcs/document/root.tex
@@ -1,59 +1,59 @@
 \documentclass[a4paper,UKenglish,cleveref,autoref]{lipics-v2021}
 \usepackage[utf8]{inputenc}
 
 \usepackage{isabelle,isabellesym}
 \isabellestyle{it}
 
 \isadroptag{theory}
 \isafoldtag{proof}
 
 
 \title{Isabelle document preparation with Dagstuhl LIPIcs style}
 
-\author{Makarius Wenzel}{Augsburg, Germany \and \url{https://sketis.net}}{}{https://orcid.org/0000-0002-3753-8280}{}
+\author{Makarius Wenzel}{Augsburg, Germany \and \url{https://sketis.net}}{}{0000-0002-3753-8280}{}
 \authorrunning{M. Wenzel}
 
 \Copyright{}
 
 \ccsdesc[100]{General and reference~General literature}
 \ccsdesc[100]{General and reference}
 
 \keywords{Document preparation}
 
 \category{}
 
 \nolinenumbers
 
 %\hideLIPIcs  %uncomment to remove references to LIPIcs series (logo, DOI, ...), e.g. when preparing a pre-final version to be uploaded to arXiv or another public repository
 
 %Editor-only macros:: begin (do not touch as author)%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \EventEditors{John Q. Open and Joan R. Access}
 \EventNoEds{2}
 \EventLongTitle{42nd Conference on Very Important Topics (CVIT 2016)}
 \EventShortTitle{CVIT 2016}
 \EventAcronym{CVIT}
 \EventYear{2016}
 \EventDate{December 24--27, 2016}
 \EventLocation{Little Whinging, United Kingdom}
 \EventLogo{}
 \SeriesVolume{42}
 \ArticleNo{23}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \begin{document}
 
 \maketitle
 
 \begin{abstract}
 Isabelle is a formal document preparation system. This example shows how to
 use it together with the Dagstuhl LIPIcs style. See
 \url{https://www.dagstuhl.de/en/publications/lipics/instructions-for-authors}
 for further information.
 \end{abstract}
 
 \input{session}
 
 \bibliographystyle{plainurl} %the mandatory bibstyle (e.g. from texlive-bibtex-extra)
 \bibliography{root}
 
 \end{document}
diff --git a/src/Doc/Demo_LLNCS/document/root.tex b/src/Doc/Demo_LLNCS/document/root.tex
--- a/src/Doc/Demo_LLNCS/document/root.tex
+++ b/src/Doc/Demo_LLNCS/document/root.tex
@@ -1,37 +1,41 @@
 \documentclass[runningheads]{llncs}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
 \usepackage{amssymb}
 
+\usepackage[colorlinks=true,linkcolor=black,citecolor=black,filecolor=black,urlcolor=black,pdfpagelabels]{hyperref}
+
+\pagestyle{plain}  %for submission
+
 \usepackage{isabelle,isabellesym}
 \isabellestyle{it}
 
 \isadroptag{theory}
 \isafoldtag{proof}
 
 
 \title{Isabelle document preparation with Springer {\LaTeX} LNCS style}
-\author{Makarius Wenzel\inst{1}\orcidID{https://orcid.org/0000-0002-3753-8280}}
+\author{Makarius Wenzel\inst{1}\orcidID{0000-0002-3753-8280}}
 \authorrunning{M. Wenzel}
 \institute{Augsburg, Germany \\ \url{https://sketis.net}}
 
 
 \begin{document}
 
 \maketitle
 
 \begin{abstract}
 Isabelle is a formal document preparation system. This example shows how to
 use it together with the Springer {\LaTeX} LNCS style. See
 \url{https://www.springer.com/gp/computer-science/lncs/conference-proceedings-guidelines}
 for further information.
 
 \keywords{Document preparation}
 \end{abstract}
 
 \input{session}
 
 \bibliographystyle{splncs04}
 \bibliography{root}
 
 \end{document}