AU: M. MANCA, J. VIJVERBERG, L.V. POLISHCHUK AND D.A. VORONOV TI: Daphnia body size and population dynamics under predation by invertebrate and fish predators in Lago Maggiore: an approach based on contribution analysis SO: Journal of Limnology VL: 67 NO: 1 PG: 15-21 YR: 2008