KOURKOULIS, S.K.; EXADAKTYLOS, G.E. The displacement discontinuity technique in fracture mechanics: the subsurface crack problem. Archives of Mechanics, Warsaw, Poland, v. 53, n. 4-5, p. 421–437, 2001. Disponível em: http://am.ippt.gov.pl/index.php/am/article/view/v53p421. Acesso em: 17 jan. 2026.