Cerebral correlates of analogical processing and their modulation by training. - Isabell Wartenburger; Hauke R. Heekeren; Franziska Preusse; Jürg Kramer; Elke Van der Meer (NeuroImage, 2009)

An effective bound for the Huber constant for cofinite Fuchsian groups. - Joshua S. Friedman; Jay Jorgenson; Jürg Kramer (Math. Comput., 2011)