1. N. Beisert et al., Review of AdS/CFT Integrability: An Overview, Lett. Math. Phys.
99 (2012) 3 [arXiv:1012.3982] [INSPIRE].
2. D. Bombardelli et al., An integrability primer for the gauge-gravity correspondence: An introduction, J. Phys.
A 49 (2016) 320301 [arXiv:1606.02945] [INSPIRE].
3. I. Bena, J. Polchinski and R. Roiban, Hidden symmetries of the AdS
5 × S
5
superstring, Phys. Rev.
D 69 (2004) 046002 [hep-th/0305116] [INSPIRE].
4. B.C. Vallilo, Flat currents in the classical AdS
5 × S
5
pure spinor superstring, JHEP
03 (2004) 037 [hep-th/0307018] [INSPIRE].
5. T.J. Hollowood, J.L. Miramontes and D.M. Schmidtt, An Integrable Deformation of the AdS
5 × S
5
Superstring, J. Phys.
A 47 (2014) 495402 [arXiv:1409.1538] [INSPIRE].