Ambiguous citation and short form in footnote

Hi, I have an issue with amiguous citation in footnote.

I have two reference by the same authors, one in a journal article and the other in an edited books (by other editors).

However, when using footnote, Endnote does not treat these reference as ambiguous, and so does not include the short title to distinguate them. 

Anyone has an solution ?

Thank you for your help :smiley: