BBC
Bbc: King Arthur, 'Once and Future King' by Michael Wood
In this article, Michael Wood tries to explain how the legend of King Arthur came to be and the changes that took place over time. He also attempts to separate legend and myth from history.
W. W. Norton
Norton Anthology of English Literature: The Middle Ages: Topics: King Arthur
This article "King Arthur: Romancing Politics: Overview" separates the historical facts of Arthur and his knights from the legends and literature that have rewritten history.