"Comunicato Ufficiale N. 131" [Official Statement No. 131] (PDF) (in Italian). Lega Serie A. 23 December 2019. p. 3. Archived from the original(PDF) on 30 October 2021. Retrieved 31 October 2021.
"Comunicato Ufficiale N. 131" [Official Statement No. 131] (PDF) (in Italian). Lega Serie A. 23 December 2019. p. 3. Archived from the original(PDF) on 30 October 2021. Retrieved 31 October 2021.