On the periodic solutions of certain fourth and fifth order vector differential equations

Autor: Tunc, Ercan
Matična publikacija: Mathematical communications (Osijek) (2005)

Oscillatory and asymptotic behaviour of second order neutral dynamic equations with positive and negative coefficients

Autor: Panigrahi, Saroj, Tunc, Ercan
Matična publikacija: Differential equations & applications (Zagreb) (2016)