MKL Integrate Special Functions in C#

Hello I'm a C# programer,

in past versions of mkl, I found special functions in libmmd.dll.

I could use for example J0 (Bessel function), in my code with this sintax:

[DllImport("libmmd.dll", ExactSpelling = true, SetLastError = false, CallingConvention = CallingConvention.Cdecl)]
internal static extern double j0(double x);

Where are now located these functions?

thank you very much

Gianluca