I am glad to announce the publication of my article Opera or ballet? Ottorino Respighi vs. Sergei Diaghilev: a study of the sources for La boutique fantasque, Le astuzie femminili, La serva padrona, «Archival notes», Venezia, Fondazione Giorgio Cini, II, 2017, pp. 1-16. (issn: 2499-832x).
You can read the full text here.