1. On some aspects in the special theory of gradient elasticity;Altan;Journal of the Mechanical Behavior of Materials,1997
2. Askes H., 2000, Advanced spatial discretisation strategies for localised failure – mesh adaptivity and meshless methods. Dissertation, Delft University of Technology
3. Dispersion analysis and Element-Free Galerkin solutions of second and fourth-order gradient-enhanced damage models;Askes;International Journal for Numerical Methods in Engineering,2000
4. Askes H., Suiker A.S.J., Sluys L.J., 1999, Dispersion and numerical analysis of higher-order gradient models in homogenized and regularized media. Technical Report 03.21.1.31.07, TU Delft
5. Dispersion analysis and Element-Free Galerkin simulations of higher-order strain gradient models;Askes;Materials Physics and Mechanics,2001