Frank Heller

Devices and methods for hydraulic braking systems for land vehicles

Frank Heller, Josef Knechtges, 2005 .

Hydraulic brake system for a land vehicle

Thomas Bach, Bernd Schmitt, Frank Heller, 2005 .

The Concept of Linear Unmixing - a Key for Interpreting Environmental Magnetic Signals

Frank Heller, Michael E. Evans, Sashko Spassov, 2004 .

A hydraulic braking system for a land vehicle with pressure control

Josef Knechtges, Frank Heller, 2005 .

Surveillance colonoscopy in patients with inflammatory bowel disease: comparison of random biopsy vs. targeted biopsy protocols

Frank Heller, Heinz-Johannes Buhr, C. Loddenkemper, 2011, International Journal of Colorectal Disease.