On stability of solutions of nonlinear systems of differential Equations

" On Nonmusical solutions of nonlinear systems of differential Equations.(2013) 6) Khalil M. Khalil "On stability of dynamical systems"(2013)

On oscillation of solutions of nonlinear systems of differential Equations.( M.SC)2012. 4) Ahmed Mohamed "On stability and oscillation of solutions of nonlinear systems of differential Equations 2013

On stability of solutions of Lotka-Volterra system in four species and its applications in scientific models.2008