Ajisai Spin Parameter Determination Using Graz Kilohertz Satellite Laser Ranging Data. - Georg Kirchner; Walter Hausleitner; Elena Cristea (IEEE Trans. Geosci. Remote. Sens., 2007)

Gravity Probe-B: New Methods to Determine Spin Parameters From kHz SLR Data. - Georg Kirchner; Daniel Kucharski; Elena Cristea (IEEE Trans. Geosci. Remote. Sens., 2009)