ZAJCHOWSKA-BOŁTROMIUK, Anna. Henry Bitterfeld, Thomas Aquinas and Identifying Sources in Late Medieval Texts. A Case Study of De formatione et reformatione Ordinis Fratrum Praedicatorum. Studia Źródłoznawcze. Commentationes. Online. 1 December 2020. Vol. 58, pp. 55-64. [Accessed 5 July 2025]. DOI 10.12775/SZ.2020.03.