Now, it's even easier: just use \bibliographystyle{abbrvnat} and it works like a charm.
In my file-containg-bibtex-entries.bib I have the following entry:
@article{Taboada2006,
author = {Taboada, Maite},
doi = {10.1016/j.pragma.2005.09.010},
issn = {03782166},
journal = {Journal of Pragmatics},
keywords = {Coherence relations,Conjunctions,Connectives,Conversation,Discourse markers,Discourse signalling,Newspaper text,RST,Rhetorical Structure Theory},
month = apr,
number = {4},
pages = {567--592},
title = {{Discourse markers as signals (or not) of rhetorical relations}},
url = {http://www.sciencedirect.com/science/article/pii/S0378216605002249},
volume = {38},
year = {2006}
}
My tex file is the following:
%preamble
...
\usepackage{natbib}
...
\begin{document}
According to \cite{Taboada2006}.
\bibliographystyle{abbrvnat}
\bibliography{file-containing-bibtex-entries}
\end{document}
This is what I get: