1. Z. Bajnok and R.A. Janik, String field theory vertex from integrability, JHEP 04 (2015) 042 [ arXiv:1501.04533 ] [ INSPIRE ].
2. B. Basso, S. Komatsu and P. Vieira, Structure Constants and Integrable Bootstrap in Planar N = 4 SYM Theory, arXiv:1505.06745 [ INSPIRE ].
3. B. Eden and A. Sfondrini, Three-point functions in N = 4 $$ \mathcal{N}=4 $$ SYM: the hexagon proposal at three loops, arXiv:1510.01242 [ INSPIRE ].
4. B. Basso, V. Goncalves, S. Komatsu and P. Vieira, Gluing Hexagons at Three Loops, arXiv:1510.01683 [ INSPIRE ].
5. Y. Jiang and A. Petrovskii, Diagonal form factors and hexagon form factors, arXiv:1511.06199 [ INSPIRE ].