On 'Concessions' and Conduct. A Study in early Ḥadīth Studies on the First Century of Islamic Society. Ed. G.H.A. Juynboll. Carbondale and Edwardsville: Southern Illinois University Press (1982): 89-107, 214-230 View Article | Download Article
Notes on the Papyrus Text about Muḥammad's Campaign against the Banū Naḍīr Archiv Orinetální 32 (1964): 233-236 View Article | Download Article
Notes on an Account of the Shura Appointed by ʿUmar B. Al-Khaṭṭāb Journal of Semitic Studies 9 (1964): 320-26 View Article | Download Article
Notes on a Papyrus Account of the ʿAqaba Meeting Le Muséon 76 (1963): 403-417 View Article | Download Article
Land Property and Jihād: A Discussion of Some Early Traditions Journal of the Economic and Social History of the Orient 34/3 (1991): 270-311 View Article | Download Article