The fuzzy local-global duality in detecting pictorial patterns. - J. Richardt; F. Karl; C. Müller; Reinhard Klette (Pattern Recognit. Lett., 1996)

Connections between fuzzy theory, simulated annealing, and convex duality. - J. Richardt; F. Karl; C. Müller (Fuzzy Sets Syst., 1998)

PATRES - A Mobile Patient simulator for Resuscitation Training. - Gero von Wagner; Malte Kirst; M. Rajewicz; F. Karl; Wilhelm Stork; Klaus D. Müller-Glaser (MoCoMed, 2003)