Illanes, A., J. M. González, J. M. Gómez, P. Valencia, and L. Wilson. “Diffusional Restrictions in Glyoxyl-Agarose Immobilized Penicillin G Acylase of Different Particle Size and Protein Loading”. Electronic Journal of Biotechnology, vol. 13, no. 1, Jan. 2010, pp. 0-0, https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v13n1-12.