答案1
像这样吗?
\RequirePackage{filecontents}
\begin{filecontents}{mybib.bib}
@misc{bb09 , Author = "Blah and Blue", year = 2009}
\end{filecontents}
\documentclass{article}
\bibliographystyle{alpha}
\usepackage{natbib}
\usepackage[svgnames]{xcolor} for 'DarkGreen' color
\usepackage[colorlinks,allcolors=DarkGreen]{hyperref}
\begin{document}
\noindent
\cite{bb09}, \cite[Proposition~1.8]{bb09}
\bibliography{mybib}
\end{document}