E. Niebelski, “Two books by Fr. Roland Prejs OFMCap about the fate of the Franciscans in the Kingdom of Poland after the dissolution of 1864: Review: Franciscan monks of the Kingdom of Poland after the dissolution of 1864. History - attitudes, Warsaw 2003; Biographical dictionary of Franciscan monks of the Kingdom of Poland after the dissolution of 1864, Poznań 2004”, NP, vol. 107, pp. 309–317, Jun. 2007.