1. Adreani, L., C. Bonacina & G. Bonomi, 1981. Production and population dynamics in profundal lacustrine Oligochaeta. Verb. int. Ver. Limnol. 21: 967?974.
2. Arkhipova, N. R., 1976. Peculiarities of the biology and production in Limnodrilus hoffmeisteri Clap. (Oligochaeta, Tubificidae) on grey muds in Rybinskoe Reservoir. Proc. Reservoir Biol. Inst.34: 5?15. [In Russian.]
3. Bonacina, C., G. Bonomi & C. Monti, 1989a. Density-dependent processes in cohorts of Tubifex tubifex, with special emphasis on the control of fecundity. Hydrobiologia 180: 135?141.
4. Bonacina, C., G. Bonomi & C. Monti, 1989b. Population analysis in mass cultures of Tubifex tubifex. Hydrobiologia 180: 127?134.
5. Bonacina, C., G. Bonomi, G. Di Cola & C. Monti, 1991a. An improved model for the study of population dynamics in Tubifex tubifex (Oligochaeta, Tubificidae). Verh. int. Ver. Limnol. 24: 2764?2767.