https://github.com/nabilsafatli/EstudosWindowsPhone/tree/develop/UtilizandoPrismApp

https://en.wikipedia.org/wiki/Model_View_ViewModel

https://msdn.microsoft.com/en-us/library/hh848246.aspx

https://code.msdn.microsoft.com/How-to-implement-MVVM-71a65441

https://www.nuget.org/packages/Prism.StoreApps/

http://wp.qmatteoq.com/prism-and-universal-windows-app-the-basic-concepts/