KALISHCHUK, Svitlana. The nature of symptoms: fluctuation or responsibility and freedom internally of choice. Bulletin of Taras Shevchenko National University of Kyiv. Psychology, [S. l.], v. 1, n. 10, p. 45–47, 2019. DOI: 10.17721/BSP.2019.1(10).11. Disponível em: https://psychology.bulletin.knu.ua/article/view/8240. Acesso em: 14 feb. 2026.