书目中的子项目

Question

我需要一个简单的工具来制作和引用{thebibliography}中的子项目，例如：

\begin{thebibliography}{9}
\bibitem{foo} foo
    \subitem{fooa} bar
    \subitem{foob} lorem
\end{thebibliography}

编译后我希望它看起来像这样：

[1] foo
    a) bar
    b) lorem

当引用

\cite{foo}
\cite{foob}
\cite{fooa, foob}

它会产生类似这样的结果：

[1]
[1b]
[1a, b]

我该怎么做以及需要哪些软件包来实现这一点？

Answer 1

这里有一个小例子，说明如何使用条目集biblatex来获得以下输出：

\documentclass{article}

\usepackage[sortcites=true,
            citestyle=numeric-comp,
            subentry=true,
            ]{biblatex}
            
\addbibresource{\jobname.bib}

\begin{filecontents}{\jobname.bib}
@article{First,
author = {First, A.},
journal = {Journal},
pages = {1762--1776},
volume = {27},
year = {2017}
}
@article{Second,
author = {Second, B.},
journal = {Journal},
pages = {1762--1776},
volume = {27},
year = {2017}
}
@article{Third,
author = {Third, C.},
journal = {Journal},
pages = {1762--1776},
volume = {27},
year = {2017}
}
@article{Fourth,
author = {Fourth, D.},
journal = {Journal},
pages = {1762--1776},
volume = {27},
year = {2017}
}
\end{filecontents}

\defbibentryset{set}{First,Second, Third}

\begin{document}

Full entry set: \cite{set}

Individual entries of the set: \cite{First} \cite{Second} \cite{Third}

multiple entries of the entry set: \cite{First,Second}

Entry that is not part of the set: \cite{Fourth}

\printbibliography
\end{document}