I added this to the above after you already replied about asking Thierry, so in case you didn't see this:
I cannot even find our author to bug her for the relevant details - but there is already a festshrift out there for her: Studi in onore di Maria Grazia Albertini Ottolenghi. That's unfortunate because older scholars usually do not load their papers to Accademia.edu and she is likely retired and not searchable via a university directory (I can't even find an emeritus listing for her).
Yes, you're right about older scholars and academia.edu. Sometimes their students will do it for them. We'll get to the bottom of it, at some point, to see if there is anything at all to the notion of a fresco cycle in the library at Pavia.