Bi-dimensional soil roughness measurement by photogrammetry for SAR modelling of agricultural surfaces. - Xavier Blaes; Pierre Defourny; Moira Callens; Niko E. C. Verhoest (IGARSS, 2004)

Analysis of soil roughness measurements using a 25 m laser profiler and a 4 m wide meshboard. - Moira Callens; Niko E. C. Verhoest (IGARSS, 2004)

Parameterization of tillage-induced single-scale soil roughness from 4-m profiles. - Moira Callens; Niko E. C. Verhoest; Malcolm W. J. Davidson (IEEE Trans. Geosci. Remote. Sens., 2006)