What has the author Vladimir Nilsen written?

It seems you're asking about an author named Vladimir Nilsen. However, there is no widely known or prominent author with that name.

It's possible you are misremembering the name, or the author has a less common name or writes in a niche genre.

To help me find the author you're looking for, could you provide any additional information? For example:

* What kind of books do they write? (fiction, non-fiction, genre, etc.)

* Do you remember any of their book titles?

* Where did you encounter this author's name? (website, book, magazine, etc.)

With more information, I can help you find the correct author.