1.
Santello F, Colombini S, Ius M, Milani P. P.I.P.P.I.: What has changed? How and why? The empirical evidence. rief [Internet]. 2017 Dec. 28 [cited 2024 Dec. 4];12(2):111-36. Available from: https://oaj.fupress.net/index.php/rief/article/view/4126