Media type: E-Article Title: Realtime Crowdsourcing with Payment of Idle Workers in the Retainer Model Contributor: Ellero, Andrea; Ferretti, Paola; Furlanetto, Giovanni imprint: Elsevier BV, 2015 Published in: Procedia Economics and Finance Language: English DOI: 10.1016/s2212-5671(15)01359-3 ISSN: 2212-5671 Keywords: General Medicine Origination: Footnote: Access State: Open Access