1. E. E. Salpeter, Astrophys. J. 121, 161 (1955).
2. E. Corbelli, F. Palla, and H. Zinnecker, Astrophys. Space Sci. Libr. 327, 1 (2005).
3. N. Bastian, K. R. Covey, and M. R. Meyer, Ann. Rev. Astron. Astrophys. 48, 339 (2010), arXiv:1001.2965.
4. S. S. R. Offner, P. C. Clark, P. Hennebelle, N. Bastian, M. R. Bate, P. F. Hopkins, E. Moraux, and A. P. Whitworth, in Protostars and Planets VI, Ed. by H. Beuther, R. S. Klessen, C. P. Dullemond, and T. Henning (Univ. of Arizona Press, Tucson, 2014), p. 53; arXiv:1312.5326.
5. P. Hennebelle and G. Chabrier, Astrophys. J. 684, 395 (2008).