I don't speak Dutch, so I am partly guessing at what you are asking for.  Look at the LaTeX package "setspace," which may be found at ftp://ftp.dante.de/tex-archive/macros/latex/contrib/setspace.
The package is described at pages 106-08 of The LaTeX Companion (2nd ed. 2004). The package adjusts interline spacing either globally with a spacing command in the preamble (e.g., \usepackage{setspace} \doublespacing) or locally using a spacing environment (e.g., with the command \usepackage{setspace} in the preamble,   \begin{spacing}{2.0}text\end{spacing}).  

Hope this is helpful.

Gary Hoffman

> 
> From: "J Bos" <jj_bos@hotmail.com>
> Date: 2004/05/12 Wed AM 05:05:49 EDT
> To: ntg-context@ntg.nl
> Subject: [NTG-context] LaTeX linespacing
> 
>