Garzón, E. M., and Inmaculada García. “Parallel Implementation for Large and Sparse Eigenproblems”. Acta Cybernetica 15, no. 2 (January 1, 2001): 137–149. Accessed May 11, 2025. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3569.