Stachowski, Marek. “Edward Piekarski (1858–1934) I Jego Słownik Jakucki (1907–1930)”. LingVaria 15, no. 2(30) (August 23, 2020): 257–269. Accessed May 16, 2025. https://journals.akademicka.pl/lv/article/view/1451.