E-Commerce and web technologies : 8th international conference, EC-Web 2007, Regensburg, Germany, September 3-7, 2007: proceedings / ed. G. Psaila, 2007 r=on-line. - Текст : электронный.
Bordogna G. Flexible databases supporting imprecision and uncertainty / G. Bordogna, G. Psaila, 2006 r=on-line. - Текст : электронный.
E-Commerce and web technologies : 9th International conference, EC-Web 2008 Turin, Italy, September 3-4, 2008: proceedings / ed.: G. Psaila, R. Wagner [et al.], 2008 r=on-line. - Текст : электронный.