hum.. just HAVE to point out that it's rather nordic mythology. We swedes have a part in there too, I promise!
I've always thought Norse included Sweeden and Denmark and Iceland! We were all vikings, and we all spoke Norse and worshiped the same gods.. Boundries where changing all the time, the countries we have now didn't even exsist! To me Norse mythology=ancient Nordic mythology, not just Norway.
Where I found it? I knew he got the names from "Volusp’" so I searched and searched to find the icelandic/norse version. Luckily there was an english translation there too! We learn about the Norse times in school and Volusp’ is an important part, so are the icelandic family sagas.