Petermann, P. ; Kreuziger, ; Friemann, (1995):
30 Jahre Wasservogelzählung im NSG 'Kühkopf-Knoblauchsaue' (Hessen).
In: Collurio. 13 (1995), S. 5-66, [Article]

Steinmann, Ralf ; Friemann, ; Prescher, ; Schellin, (1995):
Mechanical behaviour of micromachined sensor membranes under uniform external pressure affected by in-plane stresses using a Ritz method and Hermite polynomials.
In: Sensors and actuators. A48 (1995), S. 37-46, [Article]