Jakob, Frank, Daniel Meißner, and Rudi Vogel. “Comparison of Novel GH 68 Levansucrases of Levan-Overproducing Gluconobacter Species”. Acetic Acid Bacteria 1, no. 1 (June 19, 2012): e2. Accessed November 21, 2019. https://www.pagepressjournals.org/index.php/aab/article/view/aab.2012.e2.