# Header problems in fullwidth environment in tufte-book

I'm working under tufte-book documentclass, and I want to have my backmatter (Bibliography, Glossary, Index and TOC) in a fullwidth environment. For this, I use the following code (example for bibliography):

\documentclass[symmetric,justified,marginals=raggedouter]{tufte-book}
\begin{document}
\backmatter
\newgeometry{left=1in,right=1in}
\bibliographystyle{plain-fr}
\bibliography{sample-handout}
\clearpage
\restoregeometry

\end{document}


Unfortunatly, the headers go outside the page margins as follows:

I tried the following code, proposed in the answer of the question Bibliography on multiple pages :

\documentclass[symmetric,justified,marginals=raggedouter]{tufte-book}
\usepackage[most]{tcolorbox}
\begin{document}
\begin{tcolorbox}[enhanced, breakable, colback=white, colframe=white, check odd page, toggle left and right, grow to right by=\marginparwidth+\marginparsep, toggle enlargement=evenpage]
\bibliography{sample-handout}
\bibliographystyle{plain-fr}
\end{tcolorbox}
\end{document}


But it doesn't work well as the headers remain those of the previous chapter, and not those of the Bibliography !

Who can help me ?

• Have you tried this here: tex.stackexchange.com/questions/46298/… – DG' May 26 at 9:59
• I don't understant why, but \printbibliography is an undefined control sequence... so it doesn't work. – Phil8544 May 26 at 10:22
• Oh, you you need to use BibLaTeX for that – DG' May 26 at 10:56