1. The elastic dielectric;Toupin;J. Rat. Mech. Anal.,1956
2. The classical field theories;Truesdell,1960
3. Reference [2], Eqs. (205.10) and (241.4) with mpqr = 0, hp = 0, and q = 0. Since an applied point couple is exactly balanced by the antisymmetric part of the stress tensor in such a way that there is no power term associated with the spin tensor, there can be no rate of storage of elastic energy due to the spin or antisymmetric part of the stress tensor.
4. Reference [1], Secs. 5 and 10, Ref. [3].
5. Nonlinear Theory of Continuous Media;Eringen,1962