1.
Albrecht Classen. The Crisis of Spirituality in the Late Middle Ages: From the Twelfth Century to the Protestant Reformation; with an Emphasis on the Reformatio Sigismundi (1439). GJHSS [Internet]. 2019 May 15 [cited 2024 May 7];19(D2):7-16. Available from: https://socialscienceresearch.org/index.php/GJHSS/article/view/2980