Measuring Operational Safety in Aviation.

First published in Aircraft Engineering and Aerospace Technology, Vol. 78, No.1, 2006      open as pdf

Free Lessons in Aviation Safety.

First published in Aircraft Engineering and Aerospace Technology, Vol. 76, No.5, 2004   open as pdf

Air Traffic Surveillance.

First published in Measurement + Control, Vol. 35, No.9, 2002      open as pdf

A Smooth Transition from Active to Passive Air Traffic Surveillance.

First published at ERA Avionics Conference 1998      open as pdf