Digital Education: At the MOOC Crossroads Where the Interests of Academia and Business Converge 6th European MOOCs Stakeholders Summit, EMOOCs 2019, Naples, Italy, May 20-22, 2019, Proceedings - Calise, Mauro; Calise, Mauro; Delgado Kloos, Carlos; Delgado Kloos, Carlos; Reich, Justin; Reich, Justin; Ruiperez-Valiente, Jose A.; Ruiperez-Valiente, Jose A.; Wirsing, Martin; Wirsing, Martin (Springer International Publishing : Imprint: Springer, 2019)