1. Eine Bemerkung über die Charaktereisierung der “klassischen” Orthogonalpolynome;Aczél;Acta Math. Acad. Sci. Hungar.,1953
2. The Inverse Problem of Scattering Theory;Agranovich,1963
3. Orthogonal polynomials on general intervals;Akhiezer;Soviet Math. Dokl.,1960
4. On the weighted approximation of continuous functions by polynomials on the entire real axis;Akhiezer,1962
5. Lektures on Approximation Theory;Akhiezer,1965