KABANIKHIN, S.; SHISHLENIN, M. Multidimensional Analogues of Gelfand–Levitan, Marchenko and Krein Equations. Theory, Numerics and Applications. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 86, n. 3, p. 63–69, 2018. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/498. Acesso em: 4 apr. 2025.