S. Offner, P. Clark, P. Hennebelle, N. Bastian, M. Bate, P. Hopkins, E. Moraux, и A. Whitworth. (2013)cite arxiv:1312.5326Comment: 24 pages, 6 figures. Accepted for publication as a chapter in Protostars and Planets VI, University of Arizona Press (2014), eds. H. Beuther, R. S. Klessen, C. P. Dullemond, Th. Henning.