Groups, rings, group rings, and Hopf algebras international conference in honor of Donald S. Passman's 75th birthday, October 2-4, 2015, Loyola University, Chicago, IL : AMS special session in honor of Donald S. Passman's 75th birthday, October 3-4, 2015, Loyola University, Chicago, IL / - Passman, Donald S.; Bergen, Jeffrey; Catoiu, Stefan.; Chin, William. (American Mathematical Society, 2017)