Baiguera, S., Harmark, T., Lei, Y., & Wintergerst, N. (2021) . Symmetry structure of the interactions in near-BPS corners of N $$\\mathcal {N} $$= 4 super-Yang-Mills. Journal of High Energy Physics, 2021(4), 1-58. https://link.springer.com/content/pdf/10.1007/JHEP04 (2021) 029.pdf