1. (1981). Road icing on different pavement structures. VTI-Rapport 216A.
2. Contactless determination of the properties of water films on roads
3. & (1988). Vorhersage von Straßenglätte mit physikalischen Methoden. Bundesministerium für wirtschaftliche Angelegenheiten, Straßenforschung, Heft 350, Wien 1988.
4. & (1993). The prediction of ice on roads. Proceedings of the Twelfth IASTED International Conference on Modelling, Identification and Control, Innsbruck, Austria, 15–17 February 1993, 54–55.
5. & (1994). Are local measurements needed for the prediction of ice on roads? Proceedings of SIRWEC 1994, Seefeld, Austria, 21–22 March 1994, 221–33.