Displacement potentials formulation of anisotropic gradient elasticity theory with surface energyDisplacement potentials formulation of anisotropic gradient elasticity theory with surface energy Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2015-10-221996enhttp://creativecommons.org/licenses/by/4.0/635-6442nd National Congress on Computational Mechanics Vardoulakis Emmanouil Βαρδουλακης Εμμανουηλ Exadaktylos Georgios Εξαδακτυλος Γεωργιος Elasticity