Magnetic fields in the universe : from laboratory and stars to primordial structures : Angra dos Reis, Brazil, 28 November - 3 December 2004 / editors : Elisabete M. de Gouveia Dal Pino, Germǹ Lugones, Alexander Lazarian ; sponsoring organizations : Universidade de Sô Paulo, Brazil, Universit ̉di Pisa, Italy, University of Wisconsin at Madison, USA.