Habets, G. M. H. J.; Heintze, J. R. W. (November 1981). “Empirical bolometric corrections for the main-sequence”. 《Astronomy and Astrophysics Supplement》 46: 193–237. Bibcode:1981A&AS...46..193H., Tables VII and VIII.
Morgan, William Wilson; Keenan, Philip Childs; Kellman, Edith (1943). 《An atlas of stellar spectra, with an outline of spectral classification》. Chicago, Ill: The University of Chicago press. Bibcode:1943assw.book.....M.
McNally, D. (1965). “The distribution of angular momentum among main sequence stars”. 《The Observatory》 85: 166–169. Bibcode:1965Obs....85..166M.