Iza Bieżuńska-Małowist, "Athenaeus and the Slaves of Athens", W. L. Westermann, Harvard Studies in Class. Phil. Special Volume, 1941; "Slavery and the Elements of Freedom in Ancient Greece", W. L. Westermann, "Quarterly Bulletin of the Polish Institute of Arts and Sciences in America", 1943 January; "Between Slavery and Freedom", W. L. Westermann, "American Historical Review", 1945 January; "Slave Maintenance and Slave Revolts", W. L. Westermann, "Classical Phlology", 1945 January; "Two Studies in Athenian Manumission", W. L. Westermann, "Journal of Near Eastern Studies", 1946 January : [recenzja] , Przegląd Historyczny, 1948, 38, , s. 269-271