Using a F# portable library from a Windows Phone 8 app

I´m trying to use a portable F# library in my Windows Phone 8 app using Visual Studio 2013 but the compiler cannot resolve dependency to the FSharp.Core.dll version 3.3.1.0. I have tried to manually add a reference to the FSharp.Core.dll from C:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp.NETPortable. Is F# portable library supported for Windows Phone 8?