Monetisation and economic inequality among peasants in medieval Poland - Guzowski, Piotr (. Monetisation and commercialisation in the Baltic Sea, 1050-1450. - London : Routledge, Taylor & Francis Group, [2021]. - xi, 175 Seiten. - Illustrationen, Diagramme, Karten. - ISBN 978-0-367-89856-4, 2021)