The distribution of macroinvertebrate communities in two Portuguese rivers.Published in:Freshwater Biology, 1989, v. 22, n. 2, p. 297, doi. 10.1111/j.1365-2427.1989.tb01103.xBy:Graça, M. A. S.;Fonseca, D. M.;Castron, S. T.Publication type:Article