减少反向引用和参考书目条目之间的空间

Question

是否可以减少“页面”和参考书目条目之间的空间？负的 vspace 是不可靠的。

答案：\hfill有用

\documentclass[12pt]{report}
\usepackage{fontspec}
\usepackage{xunicode}
\usepackage{xltxtra}
\usepackage[english]{babel}
\usepackage[round]{natbib}
\usepackage{nohyperref}
\usepackage[pageref]{backref}

\renewcommand*{\backref}[1]{}
\renewcommand*{\backrefalt}[4]{
    \ifcase #1 (Not cited.)
    \or         \hfill(page~#2.)
    \else   \\(pages~#2.)%
   \fi
}

\bibliographystyle{plainnat}

\begin{document}

\citep{brown1960}

\bibliography{sources}

\end{document}

资料来源

@incollection{brown1960,
  title={The Pronouns of Power and Solidarity},
  author={Brown, Roger and Gilman, Albert},
  booktitle={Style in Language},
  editor={Sebeok, Thomas A.},
  pages={253–76},
  publisher={MIT Press},
  address={Cambridge},
  year={1960}
}