Baiocco, Roberto (2013). "Attitudes of Italian Heterosexual Older Adults Towards Lesbian and Gay Parenting". Sexuality Research and Social Policy. 10 (4): 285–292. doi:10.1007/s13178-013-0129-2. S2CID145433638.
Mémorial (Official Journal of the Grand-Duchy of Luxembourg). "Réforme du mariage"(PDF) (in French). Archived from the original(PDF) on 16 September 2016. Retrieved 18 July 2014.
Baiocco, Roberto (2013). "Attitudes of Italian Heterosexual Older Adults Towards Lesbian and Gay Parenting". Sexuality Research and Social Policy. 10 (4): 285–292. doi:10.1007/s13178-013-0129-2. S2CID145433638.
Mémorial (Official Journal of the Grand-Duchy of Luxembourg). "Réforme du mariage"(PDF) (in French). Archived from the original(PDF) on 16 September 2016. Retrieved 18 July 2014.