W. E. Featherstone · D. D. Lichti

W. E. Featherstone
Western Australian Centre for Geodesy,
The Institute for Geoscience Research,
Curtin University of Technology,
GPO Box U1987, Perth, WA 6845, Australia
e-mail: 

D. D. Lichti
Department of Geomatics Engineering,
The Centre for Bioengineering Research and Education,
Schulich School of Engineering, The University of Calgary,
2500 University Drive NW, Calgary, AB T2N 1N4, Canada
e-mail: 

_{Received: 21 February 2008 / Accepted: 21 August 2008 / Published online: 13 September 2008 © Springer-Verlag 2008}