Ah- ok,
{url_title_path=partners-referenties}Should generate a url like
http://www.moresoft.nl/partners-referenties/het_voordeel_van_procesmonitoring/
But- do you have a template named prtners-referenties, or does that exist only because it’s a page url? The link does show something- I’m just not sure it’s the actual entry with the url title het_voordeel_van_procesmonitoring