Sakellis I, Papathanassiou AN, Grammatikakis J. Calculation of the activation volume in semi-conducting polypyrrole. Synthetic Metals [Internet]. 2012;161:2732-2733. Website

Sakellis I. Determining the activation volumes in ZnO. Journal of Applied Physics [Internet]. 2012;112. Website

Papathanassiou AN, Sakellis I, Grammatikakis J. Dielectric relaxation under pressure in granular dielectrics containing water: Compensation rule for the activation parameters. Solid State Ionics [Internet]. 2012;209-210:1-4. Website

Sakellis I, Papathanassiou AN, Grammatikakis J. Calculation of the activation volume in semi-conducting polypyrrole. [Internet]. 2012;161:2732-2733. Website

Sakellis I. Determining the activation volumes in ZnO. [Internet]. 2012;112. Website

Papathanassiou AN, Sakellis I, Grammatikakis J. Dielectric relaxation under pressure in granular dielectrics containing water: Compensation rule for the activation parameters. [Internet]. 2012;209-210:1-4. Website