1. NEN, NEN-EN-ISO 14577-1, Metallic materials – Instrumented indentation test for hardness and materials parameters - Part 1: Test Method (ISO/DIS 14577-1: 2012, IDT)
2. ISO, NPR-ISO/TR 29381, Metallic materials – Measurement of mechanical properties by an Instrumented indentation test – indentation tensile properties (ISO/TR 29381: 2008, IDT)
3. Hardness of metals;Tabor,1951
4. The correlation of indentation experiments;Johnson;J Mech Phys Solids,1970
5. The relation between load and penetration in the axisymmetric Boussinesq problem for a punch of arbitrary profile;Sneddon;Int J Eng Sci,1965