Salkinojasalonen, MS., Nyns, E.-J., Sutton, PM., Vandenberg, L., & Wheatley, AD. (1983). Starting-up of An Anaerobic Fixed-film Reactor. Water Science and Technology, 15(8-9), 305-308. https://hdl.handle.net/2078.5/73470 (Original work published 1983)