MOLYBOGA, V. M. Schrödinger Operators with Distributional Matrix Potentials. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 5, p. 657–671, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2013. Acesso em: 5 dec. 2025.