1. Interview A (2012). Julian Priestley, EP Secretary General 1997-2007. Luxembourg, 11 October 2012.
2. Interview B (2012). Guy Vanhaeverbeke, EP Honorary Director. Luxembourg, 14 October and 11 November 2012.
3. Interview C (2012). Enrico Vinci, EP Secretary General 1986-1997. Luxembourg, 21 October 2012.
4. Interview D (2012). Theo Junker, EP Honorary Director. Luxembourg, 23 October 2012.
5. Interview E (2012). Pier-Virgilo Dastoli, Assistant to Altiero Spinelli and Former EP Secretariat Staff. Brussels, 19 November 2012.