14:54 Apr 3, 2011 

thanks for the references. I know there`s no ready-made solution, I just posted the term to see if someone else is familiar with it. I know the procedure for answering questions on proz (or at least how they should be answered, after reading the info first), but anyway thanks for the clarifications :)

23:10 Apr 2, 2011 

gives enough information to formulate it in English
http://www.goudse.nl/VerzuimVizier.html

here is more info: http://www.verdermetwerken.nl/files/Brochure VerDer VerzuimV...

there isn't always a ready-made solution. We have to read the Dutch info and then decide on a clear concise way to express it in English.