Dear Meino,
Thank you very much for the links and hints !
New item on my TODO-list: Learn better English
(at least for the names of algorithms’n’problems
That’s what mailing lists are for : let other people work for you
when you’re stuck…
This actually raises the question why it’s not called “Rucksack
Problem” - this would simplify Anglo-German communication 
Best regards,
Axel