SEMPACH, Marek. Communication in times of crisis. The specificity of effective communication with voters of modern, market-oriented political organizations. In: KISZTELIŃSKA-WĘGRZYŃSKA, Agnieszka (ed.). Koszty współczesnych kryzysów. Poland: Lodz University Press,2021. p. 39–61. DOI: 10.18778/8220-700-2.03. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/489/chapter/1381. Acesso em: 29 jan. 2026.