Yugoslavia needs some ruling authorities for the banknotes, but maybe to be under their own issuere some of them? I don't know enough about it and Numista's criteria though.
Here is my try to make a list:
Italian occupation of Montenegro (1941-1943)
Yugoslav Partisans - Slovenia/Slovenian Partians (1941-1945)
Free Territory of Trieste - zone B (1945)
Sources:
https://en.wikipedia.org/wiki/Italian_governorate_of_Montenegro