KRAVCHUK, Alexander S.; KRAVCHUK, Anzhelika I. An approximate solution of the contact problem for the hard disk and plane with a circular hole without application of singular equations. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 2, p. 59–64, 2018. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/750. Acesso em: 18 jul. 2026.