KOWALEWSKI, Z.L. Biaxial creep study of copper on the basis of isochronous creep surfaces. Archives of Mechanics, Warsaw, Poland, v. 48, n. 1, p. 89–109, 1996. DOI: 10.24423/aom.1331. Disponível em: http://am.ippt.gov.pl/index.php/am/article/view/v48p89. Acesso em: 17 jan. 2026.