The merger and assembly histories of Milky Way- and M31-like galaxies with TNG50: disc survival through mergers - Sotillo-Ramos, Diego; Pillepich, Annalisa; Donnari, Martina; Nelson, Dylan; Eisert, Lukas; Rodriguez-Gomez, Vicente; Joshi, Gandhali; Vogelsberger, Mark; Hernquist, Lars (Monthly Notices Of The Royal Astronomical Society, 2022)