
http://www.lastampa.it/2016/06/27/italia/politica/rodot-quando-i-referendum-diventano-un-boomerang-JuXpMSRHAkJH5mE0mawMrL/pagina.html

https://www.vatican.va/content/benedict-xvi/de/speeches/2011/september/documents/hf_ben-xvi_spe_20110922_reichstag-berlin.html

https://www.institut-de-la-protection-sociale.fr/download/contribution-de-linstitut-de-la-protection-sociale-a-la-2eme-phase-de-concertation/?wpdmdl=5221