LIANG, J. Basic solution for three parallel non-symmetric permeable mode-III cracks in a functionally graded piezoelectric material plate. Archives of Mechanics, Warsaw, Poland, v. 61, n. 2, p. 137–165, 2009. Disponível em: https://am.ippt.pan.pl/index.php/am/article/view/v61p137. Acesso em: 12 dec. 2025.