1. Zu den Maximalprincipien der Mengenlehre;Bernays,1974
2. Some Consequences of the theorem of Löwenhelm-Skolem-Gödel-Malcev;Beth;Indag. Math.,1953
3. The Foundations of Mathematics: A Study in the Philosophy of Science;Beth,1964
4. Lattice Theory;Birkhoff,1948
5. Lattice Theory;Birkhoff,1967