Journal Article The Public Interest Get access B. M. Barry, B. M. Barry Search for other works by this author on: Oxford Academic Google Scholar W. J. Rees W. J. Rees Search for other works by this author on: Oxford Academic Google Scholar Aristotelian Society Supplementary Volume, Volume 38, Issue 1, 12 July 1964, Pages 1–38, https://doi.org/10.1093/aristoteliansupp/38.1.1 Published: 30 July 2015
Barry et al. (Sun,) studied this question.