Gerd Kaupp. The Physical Foundation of F\(_{N}\)=kh\(^{(3/2)}\) for Conical/Pyramidal Indentation Loading Curves: Scientific Explanation . BMPCMPI [Internet]. 2022 Oct. 28 [cited 2026 Jun. 12];:3-7. Available from: https://stm.bookpi.org/BMPCMPI/article/view/8526