JASIEWICZ, Zbigniew. Beyond the Main Text. What Is Said in Forewords and Notes to Oskar Kolberg’s Body of Work?. Literatura Ludowa. Journal of Folklore and Popular Culture. Online. 24 September 2026. Vol. 70, no. 1-2, pp. 137-149. [Accessed 24 September 2026]. DOI 10.12775/LL.1.2.2026.010.