1. Aero, E.L., Kuvshinskii, E.V.: Fundamental equations of the theory of elastic media with rotationally interacting particles. Sov. Phys. Solid State 2, 1272–1281 (1961). Engl. Transl.; in Russian (1960)
2. Burton, C.V.: Theory concerning the constitution of matter. Philos. Mag. 33(201), 191–204 (1891)
3. Capriz, G.: Continua with Microstructure. Springer, New York (1989)
4. Casal, P.: Capillarité interne en mécanique. C. R. Acad. Sci. Paris 256, 3820–3822 (1963)
5. Christov, C.I., Maugin, G.A., Porubov, A.S.: On Boussinesq’s paradigm on nonlinear wave propagation. C. R. Méc. 335(9–10), 521–535 (2007). Acad. Sci. Paris, Special Issue on Boussinesq