Springer 文档类问题与 bibliographystyle

Question

我是 Springer 文档类的新手，我一直在尝试添加我的 bib desk 文件。它可以工作，但我无法在样式中添加数字，而且它不能作为参考

\documentclass[graybox]{svmult} % don't understand what's graybox ?
\usepackage{makeidx} % allows index generation
\usepackage[bottom]{footmisc}% places footnotes at page bottom
\makeindex % used for the subject index % please use the style svind.ist with 
\begin{document}
\title*{Contribution Title} 
\maketitle 
\bibliographystyle{numeric} % it only works with {unsrt} 
\bibliography{/ref.bib}
\end{document}