El Bakkali, Abdeslam, and Abdelaziz Tajmouati. “ON HOLOMORPHICALLY DECOMPOSABLE FREDHOLM OPERATORS”. Italian Journal of Pure and Applied Mathematics 31 (December 31, 2013): 7–14. Accessed July 26, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/6167.