R. Zirpel

Measuring thermoelectric effects in thermal converters with a fast reversed DC

M. Klonz, R. Zirpel, T. Spiegel, 1995 .

An ultra-stable voltage source for precision Penning-trap experiments

J. Melcher, K. Blaum, T. Wagner, 2016 .

Improving speed and accuracy of AC-DC transfer using a fast reversed DC

M. Klonz, R. Zirpel, B. Stojanovic, 1990, Conference on Precision Electromagnetic Measurements.