Rosana dam impoundment survey (1986-1991), cesp: the impacts on the water quality (lower paranapanema river , high parana basin , brazil) - Shimizu, Gisela Yuka; Romanini, P U; Fontana, S C; Costa, J; Carvalho, Maria Apparecida Juliano de; Cruz, J A (Congress of International Association of Theoretical and Applied Limnology, 1995)