Petrilionis Antanas. “The ‘auf Die Hand’ Practice: Releasing Captives on Parole Between the Teutonic Order and Lithuania in the End of XIVth and the First Half of XVth Centuries”. Lietuvos istorijos studijos 450 (July 21, 2020): 31-46. Accessed August 4, 2021. https://www.journals.vu.lt/lietuvos-istorijos-studijos/article/view/18867.