我从一个简单的参考书目示例中收到一条非常意外的错误消息。
我有一个 .tex 和一个 .bib 文件：
测试.tex：
\documentclass[letterpaper]{article}
\begin{document}
This is a citation: \cite{pearl88probabilistic}.
\bibliographystyle{named}
\bibliography{b}
\end{document}
b.围兜：
@BOOK{pearl88probabilistic,
AUTHOR = {J. Pearl},
YEAR = {1988},
title = {Probabilistic reasoning in intelligent systems: networks of plausible inference},
PUBLISHER = {Morgan Kaufmann, San Mateo (Calif.)},
}
然后我运行（在 Windows 上使用 MikTeX 2.9）：
pdflatex test
bibtex test
pdflatex test
并收到错误：
("C:\dir\test.bbl"
! Undefined control sequence.
<argument> \protect \citeauthoryear
{Pearl}{1988}
l.3 ...horyear{Pearl}{1988}]{pearl88probabilistic}
使用latex而不是pdflatex，或者使用不同的 bibtex 条目，会产生相同的错误。
以下是 test.bbl 中有问题的一行：
\bibitem[\protect\citeauthoryear{Pearl}{1988}]{pearl88probabilistic}
.tex 和 .bib 输入看起来没问题，为什么我会收到此错误消息？
这是我所做操作的完整（但已清理）跟踪（我用“dir”替换了我的用户目录）：
C:\dir>pdflatex test
This is pdfTeX, Version 3.1415926-2.5-1.40.14 (MiKTeX 2.9)
entering extended mode
LaTeX2e <2011/06/27>
Babel <v3.8m> (...)
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\base\article.cls"
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\base\size10.clo"))
No file test.aux.
LaTeX Warning: Citation `pearl88probabilistic' on page 1 undefined on input lin
e 6.
No file test.bbl.
[1{C:/ProgramData/MiKTeX/2.9/pdftex/config/pdftex.map}]
("C:\dir\test.aux")
LaTeX Warning: There were undefined references.
)<C:/Program Files (x86)/MiKTeX 2.9/fonts/type1/public/amsfonts/cm/cmbx10.pfb>
<C:/Program Files (x86)/MiKTeX 2.9/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on test.pdf (1 page, 22197 bytes).
Transcript written on test.log.
C:\dir>bibtex test
This is BibTeX, Version 0.99d (MiKTeX 2.9)
The top-level auxiliary file: test.aux
The style file: named.bst
Database file #1: bib.bib
C:\dir>pdflatex test
This is pdfTeX, Version 3.1415926-2.5-1.40.14 (MiKTeX 2.9)
entering extended mode
("C:\dir\test.tex"
LaTeX2e <2011/06/27>
Babel <v3.8m> (...)("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\base\article.cls"
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
("C:\Program Files (x86)\MiKTeX 2.9\tex\latex\base\size10.clo"))
("C:\dir\test.aux")
LaTeX Warning: Citation `pearl88probabilistic' on page 1 undefined on input lin
e 6.
("C:\dir\test.bbl"
! Undefined control sequence.
<argument> \protect \citeauthoryear
{Pearl}{1988}
l.3 ...horyear{Pearl}{1988}]{pearl88probabilistic}
答案1
提示位于 中named.bst，其中包含文件顶部附近：
% The LaTeX style has to have the following (or similar)
% \let\@internalcite\cite
% \def\cite{\def\citeauthoryear##1##2{##1, ##2}\@internalcite}
% \def\shortcite{\def\citeauthoryear##1{##2}\@internalcite}
% \def\@biblabel#1{\def\citeauthoryear##1##2{##1, ##2}[#1]\hfill}
% which makes \shortcite the macro for short citations.
因此你应该遵循以下建议：
\documentclass[letterpaper]{article}
\usepackage{filecontents}
\begin{filecontents*}{\jobname.bib}
%
@BOOK{pearl88probabilistic,
AUTHOR = {J. Pearl},
YEAR = {1988},
title = {Probabilistic reasoning in intelligent systems: networks of plausible inference},
PUBLISHER = {Morgan Kaufmann, San Mateo (Calif.)},
}
\end{filecontents*}
\makeatletter
\let\@internalcite\cite
\def\cite{\def\citeauthoryear##1##2{##1, ##2}\@internalcite}
\def\shortcite{\def\citeauthoryear##1{##2}\@internalcite}
\def\@biblabel#1{\def\citeauthoryear##1##2{##1, ##2}[#1]\hfill}
\makeatother
\begin{document}
This is a citation: \cite{pearl88probabilistic}.
\bibliographystyle{named}
\bibliography{\jobname}
\end{document}
如果我不遵循建议，就会得到错误。如果我按照建议定义命令，就不会得到错误。
答案2
按照@Troy 的建议，是这样的吗？
\documentclass[letterpaper]{article}
\usepackage{natbib}
\bibliographystyle{named}
\begin{document}
This is a citation: \citet{pearl88probabilistic}.
\bibliography{b}
\end{document}
答案3
很好，它解决了我的引用问题：
之前（错误）：
\begin{document}
This is a citation: \citet{pearl88probabilistic}.
\bibliographystyle{named}
\bibliography{b}
\end{document}
之后（无错误）：
\usepackage{natbib}
\bibliographystyle{named}
\begin{document}
This is a citation: \citet{pearl88probabilistic}.
\bibliography{b}
\end{document}