/**

\ref graphs "Graph structures"
play a central role in LEMON, so if you are new to it,
you probably should start \ref graphs "here".
You can also find that page along with others under
<a class="el" href="pages.html"> Related Pages </a>.

If you are 
interested in data structures and algorithms in more details, then
you should browse the reference manual part of the documentation.
Section <a class="el" href="modules.html"> Modules </a>
 is a good starting point for this.
*/