1. J. Eisert, M. Cramer and M. Plenio, Area laws for the entanglement entropy - a review, Rev. Mod. Phys. 82 (2010) 277 [ arXiv:0808.3773 ] [ INSPIRE ].
2. T. Nishioka, S. Ryu and T. Takayanagi, Holographic Entanglement Entropy: An Overview, J. Phys. A 42 (2009) 504008 [ arXiv:0905.0932 ] [ INSPIRE ].
3. P. Calabrese and J. Cardy, Entanglement entropy and conformal field theory, J. Phys. A 42 (2009) 504005 [ arXiv:0905.4013 ] [ INSPIRE ].
4. H. Casini and M. Huerta, Entanglement entropy in free quantum field theory, J. Phys. A 42 (2009) 504007 [ arXiv:0905.2562 ] [ INSPIRE ].
5. S.N. Solodukhin, Entanglement entropy of black holes, Living Rev. Rel. 14 (2011) 8 [ arXiv:1104.3712 ] [ INSPIRE ].