Friedrich Bielert

Entwicklung, Erprobung und Serieneinsatz eines neuartigen semi-aktiven Schalldämpfers

Herman Weltens, Patrick Garcia, Thomas Olszok, 1999 .

Durability, Acoustic Performance and Process Efficiencies of Absorbent Fibers for Muffler Filling

Thomas Kullmann, Friedrich Bielert, Cameron G. Cofer, 1999 .

Measuring device for contactless detection of a rotational angle or a linear movement

Klaus Marx, Thomas Klotzbuecher, Friedrich Bielert, 1996 .