Saviščevas, Eugenijus. “Copies of Letters from Lithuanian Rulers, Beginning With Vytautas and Jogaila in an Excerpt from the 1575 Brest Castle Court Records, Reflecting a Dispute over the Newly Drawn Borders Between the Grand Duchy of Lithuania and Poland Following the Union of Lublin”. Lietuvos istorijos studijos 57 (July 28, 2026): 107–115. Accessed July 30, 2026. https://www.journals.vu.lt/lietuvos-istorijos-studijos/article/view/47962.