Smirnova, J., Fernie, A. R., Spahn, C. M., & Steup, M. (2017). Photometric assay of maltose and maltose-forming enzyme activity by using 4-alpha-glucanotransferase (DPE2) from higher plants. Analytical Biochemistry, 532, 72-82. doi:10.1016/j.ab.2017.05.026.