I found a paper in Italian, and the citation I am interested in has the format "95. Ivi, num. 143-144."
95 is the citation number. However Ivi, I do not understand. Here is the list of citations and you can see there are many Ivi references.
Without reading the article, does the piece reference archival materials, because if you go up to note four, you get the full citation, which appears to be 56 in an archival series.