Misfeldt, M., Amdal, A., Bringslid, O., Caprotti, O., Lavicza, Z., Sanne, A. & de la Villa, A. (2009).
Working group proposal: Mathematical E-Content: Expressing, Manipulating and Retrieving Mathematics Online. I C. Winsløw (red.),
Nordic Research in Mathematics Education, Proceedings from NORMA08 in Copenhagen. 21-25 April, 2008 (s. 269-272). Brill | Sense.