General ⇒ shorten the citation of continuous numbered reference

[carol]

Hi,
Instead of having a citation like [2,3,4,5,6], how is it possible to shorten the continuous numbered reference to [2-6]?

Also consider a mixed case, a citation like [2,3,4,5,10, 20] that could be [2-5,10,20]. Note that I use \bibliographystyle{unsrt} and \usepackage [sort]{natbib}.

thanks

carol

[localghost]

Load the package with the compress option. Refer to the natbib manual for more information.


Best regards
Thorsten¹

[carol]

It seems that the compress option is in natbib.sty file however, I get the following error message
/usr/share/texmf/tex/latex/natbib/natbib.sty:250:Unknown option `compress' for package `natbib'. \newcommand

I attach the style file

[localghost]

The natbib package on your system needs an update.

[carol]

I wanted to update natbib package but the package on ctan website http://www.ctan.org/tex-archive/macros/ ... ib/natbib/ doesn't contain natbib.sty

[localghost]

Just use the package manager of your LaTeX distribution. The archive on CTAN only contains the sources.