Nowiński , Janusz Maciej. 2022. “Works of Art - Documents of Medieval History of the Cistercian Abbey at Ląd: Paten of Mieszko III, Oratory of St. James the Apostle and Expansion of the Monastery After the Middle of the 14th Century, Chalice of Casimir the Great, Staurotec-Ostulatory”. Seminare. Learned Investigations 43 (1):91-120. https://doi.org/10.21852/sem.2022.1.07.