Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
An Introduction to Mamlūk Historiography. An Analysis of Arabic Annalistic and Biographical Sources for the Reign of al-Malik an-Nāṣir Muḥammad ibn Qalā'ūn.(Freiburger Islamstudien. 2)
GH von Wright. On the idea of logical truth (II). Societas Scientiaru m Fennica, Commentationes physico-mathematicae, Bd. 15, Nr. 10. Kopenhagen und Helsingfors1950, 45 S.