Authors: Di Prisco, CA Henle, JM

Citation: Ca. Di Prisco et Jm. Henle, Doughnuts, floating ordinals, square brackets, and ultraflitters, J SYMB LOG, 65(1), 2000, pp. 461-473

Authors: Apter, AW Henle, JM Jackson, SC

Citation: Aw. Apter et al., The calculus of partition sequences, changing cofinalities, and a questionof Woodin, T AM MATH S, 352(3), 2000, pp. 969-1003

Authors: Henle, JM

Citation: Jm. Henle, Non-nonstandard analysis: Real infinitesimals, MATH INTELL, 21(1), 1999, pp. 67-73