On fatigue behaviour of two spring steels. Part II: Mathematical models. Frattura ed Integrità Strutturale, [S. l.], v. 10, n. 37, p. 258–264, 2016. DOI: 10.3221/IGF-ESIS.37.34. Disponível em: https://ww3.fracturae.com/index.php/fis/article/view/1745. Acesso em: 25 sep. 2024.