LAUFER, Imre. Statistical analysis of CPT tip resistances. Periodica Polytechnica Civil Engineering, [S. l.], v. 57, n. 1, p. 45–61, 2013. 10.3311/PPci.2141. Disponível em: https://pp.bme.hu/ci/article/view/2141. Acesso em: 14 jun. 2025.