Bogdzevič, Monika, and Arūnas Vyšniauskas. “Newspaper Report about the Panevėžys Region in 1888, a Newspaper Report by Jan Michał Witort: The Egodocumentary and Documentary Value of Written Content”. Bibliotheca Lituana, vol. 4, Nov. 2018, pp. 249-67, https://doi.org/10.15388/BibLita.2017.12140.