Error estimator for acoustic problems/Akustikos uždavinių paklaidų įvertinimas. Journal of Civil Engineering and Management, [S. l.], v. 5, n. 1, p. 22–27, 1999. DOI: 10.3846/13921525.1999.10531428. Disponível em: https://journals.vilniustech.lt/index.php/JCEM/article/view/9327. Acesso em: 9 may. 2025.