1. Mullins, S. H. et. al., “Scallop Elimination Based on Precise 5-axis Tool Placement, Orientation, and Step-Over Calculations”, Advances in Design Automation — American Society of Mechanical Engineers, Design Engineering Division (Publication) DE Vol. 65 Pt. 2, pp. 535–544, 1993.
2. Whitehouse, D. J., Handbook of Surface Metrology, Institute of Physics Publishing, London, England, 1994.