Wałkówski, Andrzej. “The Origin of Office Documents of Soltis, Peter, Racibor Wojcechowicz and Three Representatives of Ancestry Odrowąż for the Cistercian Monastery in Mogiła from the Years 1228–1231”. In Piśmiennictwo Zakonne W Dobie Staropolskiej, edited by Magdalena Kuran, Katarzyna Kaczor-Scheitler, Michał Kuran, and Dawid Szymczak, III:95–104. Literary and Linguistic Analects. Poland: Lodz University Press, 2013. Accessed January 25, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1277/chapter/3837.