Tang, K., Grossart, H., Kiørboe, T., & Ploug, H. (2007). Comparison of cell-specific activity between free-living and attached bacteria using isolates and natural assemblages. FEMS Microbiology Letters, 266(2), pp. 194-200. doi:10.1111/j.1574-6968.2006.00520.x

Tang, Kam, Hans-Peter Grossart, Thomas Kiørboe, and Helle Ploug. "Comparison of Cell-specific Activity between Free-living and Attached Bacteria Using Isolates and Natural Assemblages." FEMS Microbiology Letters 266, no. 2 (2007): 194-200.

Tang, Kam, Hans-Peter Grossart, Thomas Kiørboe, and Helle Ploug. "Comparison of Cell-specific Activity between Free-living and Attached Bacteria Using Isolates and Natural Assemblages." FEMS Microbiology Letters 266.2 (2007): 194-200.