TL properties of fossil dunes from São Francisco River, state of Bahia, Brasil - Tatumi, Sonia Hatsue; Feria Ayta, Walter Elias; Matsuoka, M.; Watanabe, Shigueo; Barreto, Alcina Magnólia Franca; Suguio, Kenitiro (International Symposium Luminescence and ESR Dating for Archaeology and Quaternary Materials, 1996)