Question: Karen Blixen and Julian Barnes both used pseudonyms in their works. 
Sentence (from "Julian Barnes"): Barnes won the Man Booker Prize for his book "The Sense of an Ending" (2011), and three of his earlier books had been shortlisted for the Booker Prize: "Flaubert's Parrot" (1984), "England, England" (1998), and "Arthur & George" (2005).
Relevant evidence: No