Relevant papers

• Energy ejection in the collapse of a cold spherical self-gravitating cloud, Joyce, M.; Marcos, B.; Sylos Labini, F.  Monthly Notices of the Royal Astronomical Society, Volume 397, Issue 2, pp. 775-792, (2009) 
• Dynamics of finite and infinite self-gravitating systems with cold quasi-uniform initial conditions, Joyce, M.; Marcos, B.; Sylos Labini, F. ,  Journal of Statistical Mechanics: Theory and Experiment, Issue 04, pp. 04019, 30 pp. (2009).
• Cold uniform spherical collapse revisited, Joyce, M.; Marcos, B.; Sylos Labini, F.    INVISIBLE UNIVERSE: Proceedings of the Conference. AIP Conference Proceedings, Volume 1241, pp. 955-964 (2010).
•  Mass Ejection and Vlasov-Poisson Limit in the Collapse of a Cold Spherical Self-Gravitating Cloud, Joyce, M.; Marcos, B.; Sylos Labini, F. , The Twelfth Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics and Relativistic Field Theories (in 3 Volumes). Edited by Chamseddine Ali H. Published by World Scientific Publishing Co. Pte. Ltd., 2012. ISBN #9789814374552, pp. 2107-2109