The quiet Sun magnetic field observed with ZIMPOL on THEMIS - I. The probability density functionV. Bommier, M. Martínez González, M. Bianda, H. Frisch, A. Asensio Ramos, B. Gelly and E. Landi Degl'InnocentiA&A, 506 3 (2009) 1415-1428DOI: https://doi.org/10.1051/0004-6361/200811373