Archeointensity determinations from historical Portuguese potteries (1500 to 1750 AD) - Hartmann, Gelvam; Trindade, Ricardo Ivan Ferreira da; Goguitchaichvili, Avto; Etchevarne, Carlos Alberto; Morales, J; Afonso, Marisa Coutinho (2008 Joint Assembly: Meeting of the Americas, 2008)