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Lua i Stíl Chicago (17ú heag.)Voigt, Kai-Ingo. Business Model Pioneers: How Innovators Successfully Implement New Business Models. New York, NY: Springer Berlin Heidelberg, 2016.
Lua MLA (9ú heag.)Voigt, Kai-Ingo. Business Model Pioneers: How Innovators Successfully Implement New Business Models. Springer Berlin Heidelberg, 2016.
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