Patrizia Ghislandi Maria Grazia Ierardi Tommaso Leo Luca Spalazzi Guest Editorial: Innovative Technologies for the Seamless Integration of Formal and Informal Learning. 1-3 2013 16 J. Educ. Technol. Soc. 1 http://www.ifets.info/download_pdf.php?j_id=58&a_id=1311 db/journals/ets/ets16.html#GhislandiILS13