Journal of Computational and Applied Mathematics (J. Comput. Appl. Math.) (20240101), 445, Paper No 115818, 11~pp. ISSN: 0377-0427 (print).eISSN: 1879-1778.
Journal of Computational and Applied Mathematics (J. Comput. Appl. Math.) (20240101), 438, Paper No 115571, 20~pp. ISSN: 0377-0427 (print).eISSN: 1879-1778.