Periodicals>Journal Article:  R. P., A., Jr., P. L., S. A. (1981), A million cubic megaparsec void in Bootes, Astrophysical Journal, Part 2 - Letters to the Editor, vol. 248, Sept. 1, 1981, p. L57-L60., Retrieved on 2012-07-06

Source Material [adsabs.harvard.edu]