TRAN, V.-N.; NGUYEN, N.-T.; LE, C.-T. On minimization of quadratic functions over closed convex sets in Hilbert spaces. HPU2 Journal of Science: Natural Sciences and Technology, [S. l.], v. 3, n. 3, p. 70–79, 2024. DOI: 10.56764/hpu2.jos.2024.3.3.70-79. Disponível em: http://sj.hpu2.edu.vn/index.php/journal/article/view/265. Acesso em: 7 jan. 2025.