What has the author R S Milne written?

There is no known author named R S Milne. It's possible you're thinking of:

* A. A. Milne, the author of Winnie-the-Pooh and other beloved children's books.

* Alan Milne, a different author, who may have used the initials "R.S."

Please double-check the name and provide more context to help me find the correct author.