PLANCK-LFI scientific goals: Implications for the reionization history

LA Popa, C Burigana, N Mandolesi, RC Butler, F Cuttaia, F Finelli, E Franceschi, M Galaverni, A Gruppuso, M Malaspina, G Morgante, F Paci, P Procopio, M Sandri, L Stringhetti, L Terenzi, L Valenziano, F Villa, J Zuccarelli