1. AemEZER N. I. Lektii po teorii approksimatsii (Leningrad 1947). Eng. Transl.: Theory off Approximation Frederick Ungar Publ. Co. New "York 1956. AemEZER N. I. Lektii po teorii approksimatsii (Leningrad 1947). Eng. Transl.: Theory off Approximation Frederick Ungar Publ. Co. New "York 1956.
2. Ein Iterationsverfahren zur Approximation durch Polynome. Z. angew;BARTH W;Math. Mech.,1958
3. LANczos C. Applied Analysis pp. 457-463. Prentice Hall Englewood Cliffs N. J. 1956. LANczos C. Applied Analysis pp. 457-463. Prentice Hall Englewood Cliffs N. J. 1956.
4. On the computation of rational approximations to continuous functions