Story "D/D2001-021" based on never-produced Barks-cartoon?

[Daniel van Eijmeren]

TIMO RONKAINEN to me, 25-05-2003:

>> Scrooge ten-pager "D/D 2001-021" by Daan Jippes(?) must be inspired 
>> by a Barks plot synopsis for a never-produced 1950s Scrooge cartoon.
>> This is too similar to be a coincidende. But maybe I'm telling
>> something that's already mentioned in the story's credits?

> That's exactly the case, although I don't know if Barks is credited 
> in every reprint of the story.

In which publications is Barks credited? And how?

> Jippes took only those parts from the synopsis he liked the best.

Are you assuming this, or do you know more?

--- Daniël