Scandinavia 
You're welcome to take part in the discussion about Scandinavia, it would give a better impression than just reinserting your own version while ignoring the opinions of others. I do appreciate that you took the time to look up the sources, and they definitely deserve a mentioning, but to categorically rule out the fact that many consider the core of Scandinavia to be just Norway and Sweden without even motivating why seems strange. That's not to say that there aren't many who see Scandinavia as Norway, Sweden and Denmark.