A. Djukic-Vukovic, L. Mojovic, S. Nikolic, J. Pejin, S. Kocic-Tanackov, and K. Mihajlovski, “Distillery Stillage as a New Substrate for Lactic Acid Production in Batch and Fed-batch Fermentation”, Chemical Engineering Transactions, vol. 34, pp. 97-102, Sep. 2013.