Plagiarism or tribute?

[Fabio Blanco]

Generally, when you want make the question, is plagiarism... 



> I recently read ``Paperino e le teste "a zero"'' (ITL 259-B) by
> Martina/Carpi.  I was surprised to see that this story was a duck
> version of Gottfredson's story with Mickey running a detective agency,
> with exactly the same plot and gags.  Does anyone know if this was meant
> as a tribute to Gottfredson, or if it was just a rip-off?