KARPIŃSKA, Małgorzata. The Story of a Turbulent Friendship. Karol Sienkiewicz and Piotr Kopczyński: Schoolmates at the Krzemieniec Lyceum: Friends – Neighbours – Political Opponents. In: KITA, Jarosław; KORYBUT-MARCINIAK, Maria (eds.). Relacje – więzi – parantele. Private Life of Poles in the 19th CenturyPoland: Lodz University Press,2026. v. 14p. 295–308. DOI: 10.18778/8445-168-7.17. Disponível em: https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1814/chapter/5573. Acesso em: 21 oct. 2026.