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問號而不是引用/擴展問題

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問號而不是引用/擴展問題

我在產生參考文獻時遇到問題。對於某些引文而不是作者姓名，文件會產生問號。我嘗試了在這個論壇中找到的建議，並且我已經知道“編譯-雙重編譯”過程，但沒有進展。

有人能幫我嗎？

這是我的程式碼的一部分

\documentclass[a4paper]{article}
\usepackage[hmargin=2.5cm,vmargin=1cm]{geometry}
\usepackage{amsmath}
\usepackage{setspace}
\usepackage[pdftex]{graphicx}
\usepackage{xcolor}
\usepackage{setspace}
\setstretch{2} 
\usepackage[utf8]{inputenc}
\usepackage{booktabs} 
\usepackage{textcomp}
\usepackage{float}

\usepackage[round]{natbib}
\usepackage[hidelinks,colorlinks,urlcolor=blue, linkcolor=blue, citecolor=blue]{hyperref}
\begin{document}
\section{Introduction}
For a survey see \citet{Perotti2008} who...
A leading example is \citet{Papageorgiou2012} who

\newpage 

\bibliographystyle{plainnat}
\bibliography{references}
\end{document}

參考書目文件包含以下條目

@TECHREPORT{ Perotti2008,
title = {In Search of the Transmission Mechanism of Fiscal Policy},
author = {Hill, Scott and Wootters, William K.}
booktitle = {NBER Macroeconomics Annual 2007",}
volume = {22},
publisher = {National Bureau of Economic Research}
year = {1997},
}

@ARTICLE{Papageorgiou2012,
  author = {Papageorgiou Dimitris},
  title = {Fiscal Policy Reforms in General Equilibrium: The case of Greece},
  journal = {Journal of Macroecnomics},
  year = {2012},
  volume = {34},
  pages = {504-522},
  owner = {Minamar},
  timestamp = {2012.08.03}
}

答案1

正如烏爾里克在她的評論中所說，你的bib文件中有一些錯誤。

一點解釋：bib文件的每個條目都必須像這樣建構：

@literature{key,
  name  = {value(s)},
  name1 = {value(s)},
  ...
  namen = {value(s)}
}

literature可以是等，book是引文鍵，代表欄位條目的名稱，例如等，並表示欄位條目的值、作者姓名、書名等。可以不寫。當您新增一行時，不寫逗號通常會導致錯誤。articlekeynameauthortitlevalue(s)

因此，文件的更正部分bib帶有一點漂亮的列印，應該看起來像您在更新的 MWE 中看到的那樣。

更新：

以下 MWE 在我的系統上運行，沒有任何錯誤或警告：

\RequirePackage{filecontents}           % allows overwriting of file
\begin{filecontents*}{\jobname.bib}
@TECHREPORT{Perotti2008,
  title       = {In Search of the Transmission Mechanism of Fiscal Policy},
  author      = {Hill, Scott and Wootters, {William K.}},
  booktitle   = {NBER Macroeconomics Annual 2007},
  volume      = {22},
  publisher   = {National Bureau of Economic Research},
  institution = {National Bureau of Economic Research??????},
  year        = {1997},
}

@ARTICLE{Papageorgiou2012,
  author    = {Papageorgiou, Dimitris},
  title     = {Fiscal Policy Reforms in General Equilibrium: The case of Greece},
  journal   = {Journal of Macroecnomics},
  year      = {2012},
  volume    = {34},
  pages     = {504--522},
  owner     = {Minamar},
  timestamp = {2012.08.03},
}
@ARTICLE{Edenber1999,
  author  = {Edenberg, Wendy and Martin Eichenbaum and DM Fischer},
  title   = {Understanding the Effects of Shocks to Government Purchases},
  journal = {Review of Economic Dynamics},
  year    = {1999},
  pages   = {166--206},
  owner   = {Minamar},
  timestamp = {2012.03.03}
}

@UNPUBLISHED{Leeper2008,
  author = {Leeper, E. M. and Walker, {T. B.} and S.-C S.Yang},
  title  = {Fiscal foresight: Analytics and econometrics},
  month  = {May},
  year   = {2008},
  owner  = {Minamar},
  timestamp = {2012.08.05}
}
\end{filecontents*}

\documentclass[a4paper]{article}
\usepackage[utf8]{inputenc} 

\usepackage[round]{natbib}
\usepackage{hyperref}

\begin{document}
\section{Introduction}
For a survey see \citet{Perotti2008} who~\dots
A leading example is \citet{Papageorgiou2012} who~\dots
%\nocite{*}   % all entrys in bibliography to test the bib file

\bibliographystyle{plainnat}
\bibliography{\jobname}
\end{document}

使用此範例來測試您的bib條目。只需複製一進入 MWE 並再次運行它（記住：三次）。

更新2:

我在 MWE 中新增了您的參考書目的兩個更正條目。文章條目Edenber1999在作者領域存在許多問題。我試圖糾正它。請您自行檢查。該條目Leeper2008顯示了另一個問題：寫作者“姓名，名字”或“名字”。不要混合它。最好包含作者的完整名字。看看作者楊（空白缺失：S. Yang？）。不要使用\&代替and.

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