Das Internationale Forum TeX Stack Exchange hatte [einen guten Tip](http://tex.stackexchange.com/a/235707) von [SoundOfSilence](http://tex.stackexchange.com/users/31729/soundsofsilence) parat. Hier meine daraus angepasste Lösung. DANKE! ======== Main.tex========== \documentclass[12pt,a4paper]{book} \usepackage[utf8]{inputenc} \usepackage[german]{babel} \newcommand\shortlabelprefix{short}% \newcommand\longlabelprefix{long}% \begin{document} \newcommand\labelprefix{\shortlabelprefix}% \input{kapitel} \begin{appendix} \newcommand*{\LONGVERSION}{} \renewcommand\labelprefix{\longlabelprefix} \include{kapitel} \end{appendix} \end{document} ======== kapitel.tex========== \chapter{This is a chapter}\label{\labelprefix::chap:mychapter} This is a test with a reference to my chapter \ref{\labelprefix::chap:mychapter} \ifdefined\LONGVERSION \section{Variant LONG} This is a long version of the chapter, which contains a lot of additional information. This shall be placed in the appendix. \else \section{Variant SHORT} This is the short version. \fi

Das Internationale Forum hatte einen [einen guten Tip Tip](http://tex.stackexchange.com/a/235707) von [SoundOfSilence](http://tex.stackexchange.com/users/31729/soundsofsilence) parat. Hier meine daraus angepasste Lösung. DANKE! ======== Main.tex========== \documentclass[12pt,a4paper]{book} \usepackage[utf8]{inputenc} \usepackage[german]{babel} \newcommand\shortlabelprefix{short}% \newcommand\longlabelprefix{long}% \begin{document} \newcommand\labelprefix{\shortlabelprefix}% \input{kapitel} \begin{appendix} \newcommand*{\LONGVERSION}{} \renewcommand\labelprefix{\longlabelprefix} \include{kapitel} \end{appendix} \end{document} ======== kapitel.tex========== \chapter{This is a chapter}\label{\labelprefix::chap:mychapter} This is a test with a reference to my chapter \ref{\labelprefix::chap:mychapter} \ifdefined\LONGVERSION \section{Variant LONG} This is a long version of the chapter, which contains a lot of additional information. This shall be placed in the appendix. \else \section{Variant SHORT} This is the short version. \fi

Das Internationale Forum hatte einen guten Tip parat. Hier meine daraus angepasste Lösung. DANKE! ======== Main.tex========== \documentclass[12pt,a4paper]{book} \usepackage[utf8]{inputenc} \usepackage[german]{babel} \newcommand\shortlabelprefix{short}% \newcommand\longlabelprefix{long}% \begin{document} \newcommand\labelprefix{\shortlabelprefix}% \input{kapitel} \begin{appendix} \newcommand*{\LONGVERSION}{} \renewcommand\labelprefix{\longlabelprefix} \include{kapitel} \end{appendix} \end{document} ======== kapitel.tex========== \chapter{This is a chapter}\label{\labelprefix::chap:mychapter} This is a test with a reference to my chapter \ref{\labelprefix::chap:mychapter} \ifdefined\LONGVERSION \section{Variant LONG} This is a long version of the chapter, which contains a lot of additional information. This shall be placed in the appendix. \else \section{Variant SHORT} This is the short version. \fi

Das Internationale Forum hatte einen guten Tip parat. Hier meine daraus angepasste Lösung. DANKE! ======== Main.tex========== \documentclass[12pt,a4paper]{book} \usepackage[utf8]{inputenc} \usepackage[german]{babel} \newcommand\shortlabelprefix{short}% \newcommand\longlabelprefix{long}% \begin{document} \newcommand\labelprefix{\shortlabelprefix}% \input{kapitel} \begin{appendix} \newcommand*{\LONGVERSION}{} \renewcommand\labelprefix{\longlabelprefix} \include{kapitel} \end{appendix} \end{document} ======== kapitel.tex========== \chapter{This is a chapter}\label{\labelprefix::chap:mychapter} This is a test with a reference to my chapter \ref{\labelprefix::chap:mychapter} \ifdefined\LONGVERSION \section{Variant LONG} This is a long version of the chapter, which contains a lot of additional information. This shall be placed in the appendix. \else \section{Variant SHORT} This is the short version. \fi