Martins, D.E., Taševský, M., Goncalves, V. P. Challenging exclusive top quark pair production at low and high luminosity LHC. Physical Review D. 2022, 105(11), 114002. ISSN 2470-0010. E-ISSN 2470-0029. Available: https://doi.org/10.1103/PhysRevD.105.114002.