Response of foraminiferal assemblages to environmental changes in the Sìo Sebastiío channel, Northern Coast of Sìo Paulo State, Brazil - Sousa, Silvia Helena de Mello e; Duleba, Wânia; Kfouri, P; Eichler, Beatriz Beck; Furtado, Valdenir Veronese (International Conference Application of Micropaleontology in Environmental Sciences, 1997)