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Willingness to pay for online physician services
Vaivio, Juhani, (2006)
Patterns of innovation in digital content services : the case of App Store applications
Kim, Jieun, (2012)
Service provider - customer interactions : key to success of innovative services
Hoffmann, Antje, (2005)
E-insurance : developing customer-friendly electronic insurance services from the novel project perspective
Ahonen, Aki, (2009)
Implementing mobile authentication in electronic transaction services
Salonen, Jarno, (2003)