ØSTERBY, O.; ZLATEV, Z. Direct Methods for Sparse Matrices. DAIMI Report Series, [S. l.], v. 9, n. 123, 1980. DOI: 10.7146/dpb.v9i123.6541. Disponível em: https://tidsskrift.dk/daimipb/article/view/6541. Acesso em: 9 may. 2024.