Swiss scientific balloon and sounding rocket experiments 1991-1993
NLC-91: An Experimental Study of the Polar Summer Mesosphere
Ions and Electrons in the Mesosphere: A Model for the Quiet D-Region
Swiss Scientific Balloon and Sounding Rocket Experiments 1995-1997
Chemistry and Abundance of Main Thermospheric Metals
Model Calculations of the Silicon and Magnesium Chemistry in the Mesosphere and Lower Thermosphere
Swiss Scientific Balloon and Sounding Rocket Experiments and Related Research in 1997-1999