Design and Early Implementation of an Extensible XML Repository. - Paris A. Zafiris; Demetris Christodoulou; Theodore S. Papatheodorou (WebNet, 2001)

Towards Modelling the User Creative Process in a Sandbox Game. - Styliani Kleanthous; Demetris Christodoulou; George A. Papadopoulos; George Samaras (UMAP (Adjunct Publication), 2018)