Gestion de multiples bibliographies dans un seul document

\documentclass[PhD,bibsection,english,french]{ulthese}
 \usepackage{chapterbib}`
\usepackage[numbers,square]{natbib}
    ...
    \include{introduction}                          
    \include{chap1-articles}    
    \include{chap2-articles}   
    \include{chap3-articles}   
    \include{discussion}            
    \include{conclusion}                          
    \renewcommand{\bibsection}{\chapter*{\bibname}} 
    \phantomsection\addcontentsline{toc}{chapter}{Bibliography} 
    \bibliographystyle{alpha}                  
    \bibliography{bibliography}   
    \appendix
    ...
\end{document}

\bibliographystyle{alpha}    
\bibliography{referenceChap1}

\documentclass[PhD,nonatbib,english,french]{ulthese}
\usepackage[style=numeric]{biblatex}
…
\addbibresource{referenceChap1.bib}
\addbibresource{referenceChap2.bib}
\addbibresource{referenceChap3.bib}
\addbibresource{bibliographie.bib}
...
\mainmatter
\include{Introduction}
\renewcommand{\bibsection}{\chapter*{\bibname}}
\include{chapitre1-articles}
\include{chapitre2-articles}
\include{chapitre3-articles}
\include{discussion}
\include{conclusion}
\phantomsection\addcontentsline{toc}{chapter}{Bibliographie}
\printbibliography
\appendix
\include{annexe}