Gerd Kaupp. Significant Effects of the Exponent 3/2 for Pyramidal and Conical Indentations: New Meanings of Physical Hardness and Modulus. BMPCMPI [Internet]. 2022 Oct. 28 [cited 2026 Jun. 12];:8-22. Available from: https://stm.bookpi.org/BMPCMPI/article/view/8527