Maddaloni Massimo, Parimbelli Giacomo, Hella Lisabeth Jane - 2019
- Case Study of a 1935 Guitar by Cremonese Luthier Luigi Digiuni (Casalbuttano 1878, Cremona 1937)
- 2019
- https://www.researchgate.net/publication/331207283_Case_Study_of_a_1935_Guitar_by_Cremonese_Luthier_Luigi_Digiuni_Casalbuttano_1878_Cremona_1937