H I clouds in the proximity of M 33M. Grossi, C. Giovanardi, E. Corbelli, R. Giovanelli, M. P. Haynes, A. M. Martin, A. Saintonge and J. D. DowellA&A, 487 1 (2008) 161-175DOI: https://doi.org/10.1051/0004-6361:200810220