Ramírez Uribe NS. Four-loop scattering amplitudes through the loop-tree duality. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 22 [cited 2024 Apr. 20];3(2):020720 1-6. Available from: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6096