I believe the Poul Anderson reference is to Star Fox, where one of the key characters is a troubadour. From the title, I would guess that Marque and Reprisal was one of the stories that went to make up The Star Fox. SF writers of the period were wont to do this to make a few extra cents.

Hey! It would be difficult to make up a sentence planning to use the word "wont" and there it just popped up of its own accord!