1. Applications of the theory of linear differential equations I, Riveon lematematica1 (1946/7), 47–48 (in Hebrew; English summary).
2. Applications of the theory of linear differential equations II, Riveon lematematica1 (1946/7), 79–82 (in Hebrew; English summary).
3. On unique factorization in rings, Riveon lematematica2 (1948), 28–29 (in Hebrew; English summary).
4. A generalization of a theorem on linear differential equations, Bulletin of the American Mathematical Society54 (1948), 937–941
5. Contributions to the theory of central simple algebras, Summary of thesis submitted to the Hebrew University of Jerusalem, 1949, pp. 1–28.