S. Wolfe, D. Pisano, F. Lockman, S. McGaugh, and E. Shaya. (2013)cite arxiv:1305.1631Comment: 7 pages, 4 figures, including supplementary information and figure, to appear in Nature.
S. McGaugh. (2011)cite arxiv:1102.3913
Comment: 4 pages. Physical Review Letters, in press. Also available from
http://www.astro.umd.edu/~ssm/papers/PhysRevLett_2011_inpress.pdf.
R. Sanders, and S. McGaugh. (2002)cite arxiv:astro-ph/0204521
Comment: To be published in volume 40 of Annual Reviews of Astronomy &
Astrophysics. 36 pages plus 12 figures and 1 table.