Jörg Philipp Terhechte, Art. 351 TFEU, the Principle of Loyalty and the Future Role of the Member States’ Bilateral Investment Treaties 18. January 2011 You need to be logged in to view this content. Please Log In. Not a Member? Join Us Posted in CELIS-CONTENT and tagged 2011, CELIS-CONTENT-ACADEMIC-Paper, EU, Europe, International Investment Law