1. Helioseismic bounds in the central temperature of the Sun
2. Bahcall, J. N. 1988, Neutrino Astrophysics (Cambridge: Cambridge Univ. Press)
3. Barnett, V. & Lewis, T. 1984, in Outliers in Statistical Data (New York: Wiley)
4. Book, S. A. 1978, in Essentials of Statistics (London: McGraw-Hill)