References
- Bidwell, R. G. S., 1977: Photosynthesis and light and dark respiration in freshwater algae. — Can. J. Bot. 55: 809–818.
- Hobbie, J. E., Daley, R. J. & Jasper, S., 1977: Use of Nuclepore filters for counting bacteria by epifluorescence microscopy. — Appl. Environ. Microbiol. 33: 1225–1228.
- Jespersen, A.-M. & Christoffersen, K., 1987: Measurements of chlorophyll a from phytoplankton using ethanol as extraction solvent. — Arch. Hydrobiol. 109: 445–454.
- Peterson, B. J., 1980: Aquatic primary productivity and the 14C-C02 method: a history of the productivity problem. — Annu. Rev. Ecol. Syst. 11: 369–385.
- Richardson, K., Samuelsson, G. & Hälgren, J.-E., 1984: The relationship between photosynthesis measured by 14C incorporation and by uptake of inorganic carbon in unicellular algae. — J. Exp. Biol. Ecol. 81: 241–250.
- Smith, R. E. H., Geider, R. J. & Platt, T., 1984: Microplankton productivity in the oligotrophic ocean. — Nature 311: 252–254.
- Søndergaard, M., 1988 a: Simultaneous measurements of carbon-14 and carbon-12 exchange in submerged macrophytes. — Verh. Intemat. Verein. Limnol. 23: 921–927.
- Søndergaard, M. 1988 b: Comparison of 14CO2 and 12CO2 uptake in marine macroalgae. — Bot. Mar. 31: 417–422.
- Steemann Nielsen, E., 1952: The use of radioactive carbon (C14) for measuring organic production in the sea. — J. Cons. Int. Explor. Mer. 18: 117–140.