Jehmlich, N., Fetzer, I., Seifert, J., Mattow, J., Vogt, C., Harms, H., Thiede, B., Richnow, H.-H., von Bergen, M., & Schmidt, F. (2010). Decimal Place Slope, A Fast and Precise Method for Quantifying C-13 Incorporation Levels for Detecting the Metabolic Activity of Microbial Species. Molecular & Cellular Proteomics, 9(6), 1221-1227.