My memory of Eric Stein is of a teacher and mentor rather than a colleague. I will leave to others more qualified than I to describe his major contributions to the academic literature and teaching of European Community and public international law. When I entered Michigan Law School as a student in 1980, Eric had "technically" retired or at least transitioned to emeritus status. I say he had "technically" retired because his commitment to the law school community as a writer, teacher, and mentor to students never appeared to diminish. He still taught a number of classes and seminars, wrote extensively, and was more than generous with the time he spent with young law students like myself who professed an interest in international law.
Carl A. Valenstein,
Memory of Eric Stein,
Mich. J. Int'l L.
Available at: https://repository.law.umich.edu/mjil/vol33/iss1/501