F. Helery

Calibration of the scales of areal surface topography measuring instruments: part 2. Amplification, linearity and squareness

Claudiu L Giusca, Richard Leach, R. Leach, 2012 .

Calibration of the geometrical characteristics of areal surface topography measuring instruments

Claudiu L Giusca, Richard Leach, F Helery, 2011 .