Wang, Bohua, Liping Lin, Lei Lu, and Weiping Chen. 2012. “Optimization of β-Carotene Production by a Newly Isolated Serratia Marcescens Strain”. Electronic Journal of Biotechnology 15 (6). Valparaíso, Chile. https://preprints.pucv.cl/index.php/ejbiotechnology/article/view/v15n6-3.