Creative Learning with Serious Games. - Aristidis Protopsaltis; Lucia Pannese; Sonja Hetzner; Dimitra Pappa; Sara de Freitas (Int. J. Emerg. Technol. Learn., 2010)

Adult Self-regulated Learning through Linking Experience in Simulated and Real World: A Holistic Approach. - Sónia Hetzner; Christina M. Steiner; Vania Dimitrova; Paul Brna; Owen Conlan (EC-TEL, 2011)

weSPOT: A Cloud-based Approach for Personal and Social Inquiry. - Alexander Mikroyannidis; Alexandra Okada; Peter Scott; Ellen Rusman; Marcus Specht; Krassen Stefanov; Aristos Protopsaltis; Paul Held; Sónia Hetzner (WCLOUD, 2012)

weSPOT: A Personal and Social Approach to Inquiry-Based Learning. - Alexander Mikroyannidis; Alexandra Okada; Peter Scott; Ellen Rusman; Marcus Specht; Krassen Stefanov; Pavel Boytchev; Aristidis Protopsaltis; Paul Held; Sónia Hetzner; Kathy Kikis-Papadakis; Foteini Chaimala (J. Univers. Comput. Sci., 2013)

How to Teach Entrepreneurship Using Serious Games and Web 2.0. - Aristidis Protopsaltis; Sónia Hetzner; Spiros A. Borotis; Thomas M. Connolly; Thomas Hainey (ICALT, 2014)

Mobile Learning Concepts for Older Adults: Results of a Pilot Study with Tablet Computers in France and Germany. - Eline Leen-Thomele; Sónia Hetzner; Paul Held (HCI (25), 2016)