Simon J. Gay. Subtyping Supports Safe Session Substitution. In Sam Lindley, Conor McBride, Philip W. Trinder, Donald Sannella, editors, A List of Successes That Can Change the World - Essays Dedicated to Philip Wadler on the Occasion of His 60th Birthday. Volume 9600 of Lecture Notes in Computer Science, pages 95-108, Springer, 2016. [doi]
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