Miechowita's knowledge of East European languages (mainly Hungarian, Lithuanian and Tatar) based on his "Tractus de duabus Sarmatiis" (1517) - Stachowski, Marek (Uniwersytet Jagielloński w Krakowie [Tb1]. Studia linguistica Universitatis Iagellonicae Cracoviensis. - Kraków : Wydawn. Uniw. Jagiellońskiego, 2006-2017. - ISSN 1897-1059 130, 2013)