McClure's Magazine Archive
https://onlinebooks.library.upenn.edu/webbin/serial?id=mcclures
An archive of McClure's Magazine, in which "Paul's Case" first was published.
Willa Cather's Paul's Case
https://www.youtube.com/watch?v=7QYx_eit1io&ab_channel=tainlor
A 1980 live-action adaptation of the story, starring Eric Roberts as Paul.
Aestheticism and Decadence in “Paul’s Case”
https://medium.com/@londonskoffler/aestheticism-and-decadence-in-pauls-case-4fbd0db9a773
Analysis of the story with an emphasis on aestheticism.