2006, Article / Letter to editor (Exploiting Large Surveys for Galactic Astronomy, 26th Meeting of the Iau, Joint Discussion 13, 22-23 August 2006, Prague, Czech Republic, Jd13, #16, vol. 13, (2006), pp. 16)
2005, Contribution for newspaper or weekly magazine (The Newsletter of the Isaac Newton Group of Telescopes (ING Newsl.), issue no. 9, p. 3-7., , pp. 3-7)