1. Alexander G.P., Yeomans J.M.: Stabilizing the blue phases. Phys. Rev. E 74(6), 061706 (2006)
2. Ambrosio, L., Fusco, N., Pallara, D.: Functions of Bounded Variation and Free Discontinuity Problems. Clarendon Press Oxford, 2000
3. Ambrosio, L., Tortorell, V.M.: On the approximation of free discontinuity problems. Scuola Normale Superiore (1990)
4. Aviles, P., Giga, Y.: A mathematical problem related to the physical theory of liquid crystal configurations. Proc. Centre Math. Anal. Austral. Nat. Univ, vol. 12, pp. 1–16, 1987
5. Ball J.M., Zarnescu A.: Orientability and energy minimization in liquid crystal models. Arch. Rat. Mech. Anal. 202(2), 493–535 (2011)