Csdrhrt

I'm trying to include a citation in a beamer frame following the instruction here. However, I couldn't figure out how to place them inside a subfigure environment. Namely, my code:

begin{frame}

  frametitle{Reactive-transport systems}

  begin{figure}

    centering

    begin{subfigure}{0.45textwidth}

      includegraphics[width=0.45textwidth]{Chabanon2017.jpg}

      caption{Here is text footfullcite{Chabanon2017}}

    end{subfigure}

    begin{subfigure}{0.45textwidth}

      includegraphics[width=0.45textwidth]{Steefel2005.jpg}

      caption{Here is text footfullcite{Steefel2005}}

    end{subfigure}

  end{figure}

end{frame}

And this is what I'm seeing:

Any suggestions on how to go around it?

EDIT: Add minimal working example:

documentclass{beamer}



usepackage{pgf}

usepackage{xcolor}

usepackage[utf8]{inputenc}

% Citation                                                                                                                      

usepackage[backend=bibtex, style=science]{biblatex}



usepackage{subcaption}

usepackage{filecontents}



begin{filecontents}{vorlage.bib}



 @article{test1,

    author  = {Shen Lin and Brian W. Kernighan},

    title   = {An Effective Heuristic Algorithm for the Travelling-Salesman Problem},

    journal = {Operations Research},

    volume  = {21},

    year    = {1973},

    pages   = {498--516},

 }



@BOOK{test,

  title = {The Infamous Test},

  publisher = {Testington Test},

  year = {2007},

  author = {John Doe},

  address = {Testville},

}



@ARTICLE{test2,

  author = {Testi, T.},

  year = {2003},

  title = {Testartikel},

  journal = {Testjournal}

}

end{filecontents}







% Hacky fix to citation                                                                                                         

makeatletter

defblx@maxline{77}

makeatother



% Add bibliography file                                                                                                         

bibliography{vorlage.bib}



begin{document}



begin{frame}

frametitle{Introduction and motivation - the title}

section[Motivation]{Introduction and motivation}

begin{figure}

centering

begin{subfigure}{.45textwidth}

  centering

  includegraphics[width=linewidth]{example-image}

  caption{A subfigure footfullcite{test}}

  label{fig:sub1}

end{subfigure}%

begin{subfigure}{.45textwidth}

  centering

  includegraphics[width=linewidth]{example-image}

  caption{A subfigure footfullcite{test1}}

  label{fig:sub2}

end{subfigure}

caption{A figure with two subfigures footfullcite{test2}}

label{fig:test}

end{figure}

end{frame}



end{document}

This will produce the following result:

and you can see that the citation is stuck underneath each subfigure instead of gathering all at the bottom of the page.

Based on Footfullcitetext and beamer: incremental numbering you could work around the problem like this:

documentclass{beamer}



%usepackage{pgf}

%usepackage{xcolor}

usepackage[utf8]{inputenc}

% Citation                                                                                                                      

usepackage[style=science]{biblatex}



usepackage{subcaption}

usepackage{filecontents}



begin{filecontents}{vorlage.bib}



 @article{test1,

    author  = {Shen Lin and Brian W. Kernighan},

    title   = {An Effective Heuristic Algorithm for the Travelling-Salesman Problem},

    journal = {Operations Research},

    volume  = {21},

    year    = {1973},

    pages   = {498--516},

 }



@BOOK{test,

  title = {The Infamous Test},

  publisher = {Testington Test},

  year = {2007},

  author = {John Doe},

  address = {Testville},

}



@ARTICLE{test2,

  author = {Testi, T.},

  year = {2003},

  title = {Testartikel},

  journal = {Testjournal}

}

end{filecontents}







% Hacky fix to citation                                                                                                         

makeatletter

defblx@maxline{77}

makeatother



% Add bibliography file                                                                                                         

bibliography{vorlage.bib}





DeclareCiteCommand{footfullcitetext}[mkbibfootnotetext]

  {usebibmacro{prenote}}

  {usedriver

     {DeclareNameAlias{sortname}{default}}

     {thefield{entrytype}}}

  {multicitedelim}

  {usebibmacro{postnote}}





begin{document}



begin{frame}

frametitle{Introduction and motivation - the title}

section[Motivation]{Introduction and motivation}

begin{figure}

centering

begin{subfigure}{.45textwidth}

  centering

  includegraphics[width=linewidth]{example-image}

  caption{A subfigurefootnotemark[1]}

  label{fig:sub1}

end{subfigure}%

begin{subfigure}{.45textwidth}

  centering

  includegraphics[width=linewidth]{example-image}

  caption{A subfigurefootnotemark[2]}

  label{fig:sub2}

end{subfigure}

caption{A figure with two subfiguresfootnotemark[3]}

label{fig:test}

end{figure}



addtocounter{footnote}{1}

footfullcitetext{test}

addtocounter{footnote}{1}

footfullcitetext{test1}

addtocounter{footnote}{1}

footfullcitetext{test2}

end{frame}



end{document}

An alternative to @samcarter's since I done it before see the answer:

documentclass{beamer}



usepackage{pgf}

usepackage{xcolor}

usepackage[utf8]{inputenc}

% Citation                                                                                                                      

usepackage[backend=bibtex, style=science]{biblatex}



usepackage{subcaption}

usepackage{filecontents}

newsavebox{mybox}



begin{filecontents}{vorlage.bib}



 @article{test1,

    author  = {Shen Lin and Brian W. Kernighan},

    title   = {An Effective Heuristic Algorithm for the Travelling-Salesman Problem},

    journal = {Operations Research},

    volume  = {21},

    year    = {1973},

    pages   = {498--516},

 }



@BOOK{test,

  title = {The Infamous Test},

  publisher = {Testington Test},

  year = {2007},

  author = {John Doe},

  address = {Testville},

}



@ARTICLE{test2,

  author = {Testi, T.},

  year = {2003},

  title = {Testartikel},

  journal = {Testjournal}

}

end{filecontents}







% Hacky fix to citation                                                                                                         

makeatletter

defblx@maxline{77}

makeatother



% Add bibliography file                                                                                                         

bibliography{vorlage.bib}



begin{document}



begin{frame}

frametitle{Introduction and motivation - the title}

section[Motivation]{Introduction and motivation}

begin{figure}

centering

begin{subfigure}{.45textwidth}

  centering

  includegraphics[width=linewidth]{example-image}

  caption{A subfigurefootnotemark[1]}% footfullcite{test}}

  label{fig:sub1}

end{subfigure}%

begin{subfigure}{.45textwidth}

  centering

  includegraphics[width=linewidth]{example-image}

  caption{A subfigure footnotemark[2]}

  label{fig:sub2}

end{subfigure}

caption{A figure with two subfiguresfootnotemark[3]}% footfullcite{test2}}

label{fig:test}

end{figure}

sbox1{hbox{footfullcite[1]{test}

footfullcite[2]{test1}

footfullcite[3]{test2}}}

end{frame}



end{document}

PS: The output is the same but I just used the footnotemark trick and let the footfullcite commands to be expanded inside an sbox (but actually outside of it). The good part is that no need of advanced bib(La)TeX knowledge is needed...