Tax burden as a factor in the sustainability of IT companies: Post-COVID dynamics in RussiaElena Vylkova, Natalia Pokrovskaia, Viacheslav Zhigalov, Oksana Muraveva and Irina VeynerE3S Web Conf., 533 (2024) 04024DOI: https://doi.org/10.1051/e3sconf/202453304024