This paper looks at Tolkien’s relationship with the other Inklings, especially Lewis, Williams and Barfield, in particular studying the affinities and differences between them and what Tolkien owes to them. “The Notion Club Papers” is discussed as an idealized portrait of the Inklings.
"Tolkien and the Other Inklings,"
Mythlore: A Journal of J.R.R. Tolkien, C.S. Lewis, Charles Williams, and Mythopoeic Literature: Vol. 21
, Article 54.
Available at: https://dc.swosu.edu/mythlore/vol21/iss2/54