STEPANOV, A. A. On the discrete linear ill‐posed problems. Mathematical Modelling and Analysis, [S. l.], v. 4, n. 1, p. 147–152, 1999. DOI: 10.3846/13926292.1999.9637119. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/9978. Acesso em: 2 jun. 2025.