Žąsinaitė-Gedminienė, Jurgita. “Universal Time Counters of the Grand Duchy of Lithuania in the Second Half of the 18th Century: Vilnius and Grodno Calendars”. Literatūra 52, no. 1 (January 1, 2010): 7–19. Accessed July 22, 2024. https://www.journals.vu.lt/literatura/article/view/7713.