1. Adreani, L., C. Bonacina & G. Bonomi, 1981. Production and population dynamics in profundal lacustrine oligochaeta. Verh. int. Ver. Limnol. 21: 967?974.
2. Adreani, L., C. Bonacina, G. Bonomi & C. Monti, 1984. Cohort cultures of Psammoryctides barbatus (Grube) and Spirosperma ferox Eisen: a tool for a better understanding of demographic strategies in tubificids. Hydrobiologia 115: 113?119.
3. Adreani, L. & G. Bonomi, 1980. Some observations on a population dynamics of tubificid worms. Proc. Third Congr. Italian Association Oceanol. Limnol.: 355?366. (In Italian).
4. Archipova, N. R., 1976. Peculiarities of the biology and production in Limnodrilus hoffmeisteri Clap. (Oligochaeta, Tubificidae) on grey muds in the Ribinskoe Reservoir. Proc. Reservoir Biol. Inst. 34: 5?15 (in Russian).
5. Archipova, N. R., 1980. Biology of Potamothrix hammoniensis (Mich.) (Oligochaeta, Tubificidae) of the Ribinskoe Reservoir. In: Monakov, A. V & A. I. Silova (Eds.) Morphology and biology of freshwater invertebrates; 14?27 (in Russian).