Planck 2015 results II. Low Frequency Instrument data processings

P.A.R Ade, N. Aghanim, M. Ashdown, J. Aumont, C. Baccigalupi, Rosa Maria Ballardini, A.J. Banday, R.B. Barreiro, N. Bartolo, Per Rex Christensen, Pavel Nasselski, Anne Mette Frejsel, Igor Dmitrievich Novikov, Hans Ulrik Nørgaard-Nielsen