Glymour, Clark Review of "The Art of Causal Conjecture by Glenn Shafer Department of Philosophy technical report Philosophy 1998-12-01
    https://kilthub.cmu.edu/articles/journal_contribution/Review_of_The_Art_of_Causal_Conjecture_by_Glenn_Shafer/6492611
10.1184/R1/6492611.v1