there's at least 3 books on them that I know of..I have almost everything of H Beam Piper I can find (died years ago..) I'm sure Lucas was 'never' inspired by them, I mean, next thing, you'll say that Coruscant was based on Asimov's Trantor, wookie comes from a stagehands effort not to cuss, and that the millenium falcon was designed after a dinner..;

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)