Skurvydaitė, Loreta. “Title and Power of the Ruler of Lithuania During the End of the Fourteenth up to the Middle of the Fifteenth Century”. Lietuvos istorijos studijos 7 (December 28, 1999): 18–27. Accessed October 20, 2024. https://www.journals.vu.lt/lietuvos-istorijos-studijos/article/view/37260.