CHAPKO, R.; JOHANSSON, B. T. Calculating heat and wave propagation from lateral Cauchy data. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 74, n. 2, p. 274–285, 2022. DOI: 10.37863/umzh.v74i2.6880. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6880. Acesso em: 5 dec. 2025.