Mass and density determinations of 140 Siwa and 4979 Otawara as expected from the Rosetta flybysM. Pätzold, A. Wennmacher, B. Häusler, W. Eidel, T. Morley, N. Thomas and J. D. AndersonA&A, 370 3 (2001) 1122-1127DOI: https://doi.org/10.1051/0004-6361:20010244
