"Operazioni di mercato"(PDF) (in Italian). S.S. Lazio. 1 February 2007. Archived from the original(PDF) on 17 September 2021. Retrieved 21 September 2016.
"Operazioni di mercato"(PDF) (in Italian). S.S. Lazio. 1 February 2007. Archived from the original(PDF) on 17 September 2021. Retrieved 21 September 2016.