Chamorro, S., C. R. Xavier, V. Hernández, J. Becerra, and G. Vidal. “Aerobic Removal of Stigmasterol Contained in Kraft Mill Effluents”. Electronic Journal of Biotechnology, vol. 12, no. 2, Apr. 2009, pp. 0-0, https://www.ejbiotechnology.info/index.php/ejbiotechnology/article/view/v12n2-9.