1. On oscillation of solutions of the equation y(n)+p(x)y=0;Kondrat'ev;Tr. Mosk. Mat. Obs.,1961
2. Asymptotic Properties of Solutions of Nonautonomous Ordinary Differential Equations;Kiguradze,1993
3. Differential equations with deviating argument that have the properties A and B;Koplatadze;Differ. Uravn.,1989
4. Linear functional differential equations with Property A;Grammatikopoulos;J. Math. Anal. Appl.,2003
5. Properties A and B of nth order linear differential equations with deviating argument;Koplatadze;Georgian Math. J.,1999