
https://theconversation.com/trumps-free-speech-faces-court-ordered-limits-like-any-other-defendants-2-law-professors-explain-why-and-how-trumps-lawyers-need-to-watch-themselves-too-211459

https://www.oecd-ilibrary.org/docserver/9789264293083-en.pdf?expires=1529901663&id=id&accname=guest&checksum=4A5E0B0C79A72EF7A887DDB0119B4594

https://search.coe.int/cm/Pages/result_details.aspx?ObjectID=09000016809ed062