- Formulation and Finite Element Implementation of Dynamically Consistent Gradient Elasticity,
H. Askes, I.M. Gitman and T. Bennett
Paper 5 from CCP: 85, ISBN 978-1-905088-14-0 (2007)
- A Multi-Scale Formulation of Gradient Elasticity and Its Finite Element Implementation,
H. Askes, T. Bennett, I.M. Gitman and E.C. Aifantis
Chapter 10 from CSETS: 20, ISBN 978-1-874672-40-1 (2008)