Zhong, J., X. Zhang, Y. Ren, J. Yang, H. Tan, and J. Zhou. “Optimization of Bacillus Subtilis Cell Growth Effecting Jiean–peptide Production in Fed Batch Fermentation Using Central Composite Design”. Electronic Journal of Biotechnology, vol. 17, no. 3, May 2014, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/2014.04.010.