Saviščevas, Eugenijus. “The Work Did Not Stop Even on the Lord’s Day Sigismund I’s Workdays at the Court of the Grand Duchy of Lithuania 1506–1544”. Vilnius University Open Series (May 9, 2024): 143–168. Accessed July 17, 2024. https://www.journals.vu.lt/open-series/article/view/35267.