1. Walser, R. M. Electromagnetic metamaterials. Proc. SPIE, Complex Mediums II: Beyond Linear Isotropic Dielectr. (eds Lakhtakia, A., Weiglhofer, W. S. & Hodgkinson, I. J.) 4467 (2001).
2. Bendsøe, M. & Sigmund, O. Topology Optimization: Theory, Methods and Applications (Springer, 2004).
3. Browning, V. DARPATech 2002 7, 791–795 (2002).
4. Kittel, C. Introduction to Solid State Physics (Wiley, 2004).
5. Milton, G. W. The Theory of Composites (Cambridge Univ. Press, 2002). This textbook provides a comprehensive theoretical introduction to man-made composite materials in electromagnetism and optics, acoustics and mechanics, and transport.