Experimental measurements of elastic scattering for medium heavy ion collisions at energies near of coulomb barrier - Acquadro Quacchia, Juan Carlos; Liguori Neto, Raphael; Tenreiro, C; Freitas, P A B; Aleixo, L A G; Nemes, M C; Ramirez, G (Reuniao de Trabalho sobre Fisica Nuclear No Brasil, 1988)