Kalvāne, Skaidrīte. “SEARCHING FOR THE SOURCES OF 18TH AND 19TH CENTURY LATGALIAN RELIGIOUS SONGS”. Via Latgalica, no. 7 (March 22, 2016): 172–182. Accessed May 8, 2024. https://journals.ru.lv/index.php/LATG/article/view/1218.