1. Abrahamsen, G.: Studies on body-volume, bodysurface area, density and live weight of Enchytraeidae (Oligochaeta). Pedobiologia 13, 6?15 (1973a)
2. ?: Biomass and body surface area of populations of Enchytracidae and Lumbricidae (Oligochaeta) in Norwegian coniferous forest soils. Pedobiologia 13, 28?39 (1973b)
3. Albert, R.: Zum Lebenszyklus von Enchytraeus coronatus Nielsen und Christensen, 1959. Mitt. hamb. zool. Mus. Inst. 72 (1975). (In press)
4. Andrássy, I.: Die Rauminhalts-und Gewichtsbestimmung der Fadenwürmer (Nematode). Acta zool. hung. 2, 1?15 (1956)
5. Ankar, S. and R. Elmgren: A survey of the benthic macro-and meiofauna of the Askö-Landsort area. 3rd Baltic Symposium on Marine Biology (Helsinki, 1973). HavsforskInst. Skr., Helsingf. (In press)