Random field models in the textural analysis of ultrasonic images of the liver. - Jörg S. Bleck; Ulrich Ranft; Michael Gebel; Hartmut Hecker; Mechthild Westhoff-Bleck; C. Thiesemann; Siegfried Wagner; Michael P. Manns (IEEE Trans. Medical Imaging, 1996)

The association between multidose vaccinations and death: comparing case series methods when the first exposure changes the general risk of an event. - Ronny Kuhnert; Stefania Spila-Alegiani; Gianpaolo Scalia Tomba; Giuseppe Traversa; Mechtild Vennemann; Hartmut Hecker (Stat. Methods Appl., 2013)