Sathyaprakash, B.S.Sahni, VarunMunshi, DipakPogosysn, D.Melott, A.L.2015-02-182015-02-182015-02-18http://hdl.handle.net/11007/2906enGravitationGravitational instability in the strongly nonlinear regime: A study of various approximationsArticle