MARINOV, Marin; TODOROVA, Lyubomira. The Impact of the Coronavirus Crisis on Revenues of Hotel and Restaurant Businesses in Bulgaria. Economics Ecology Socium, [S. l.], v. 6, n. 2, p. 21–28, 2022. DOI: 10.31520/2616-7107/2022.6.2-2. Disponível em: https://ees-journal.com/index.php/journal/article/view/191. Acesso em: 2 aug. 2026.