Guebel, D. V. and Torres Darias, N. V. (2001) “Optimization of the citric acid production by Aspergillus niger through a metabolic flux balance model”, Electronic Journal of Biotechnology. Valparaíso, Chile, 4(1), pp. 0–0. Available at: https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v4n1-2 (Accessed: 22 November 2024).