1. Alexandrov, A.: Isometric embeddings of coinvariant subspaces of the shift operator. Zap. Nauchn. Sem. S.-Peterburg. Otdel. Mat. Inst. Steklov. (POMI) 232, 5–15 (1996)
2. Arnold, V.I.: Arnold’s Problems. Springer-Verlag, Berlin (2004)
3. Benedicks, M.: The support of functions and distributions with a spectral gap. Math. Scand. 55, 285–309 (1984)
4. Beurling, A.: On quasianalyticity and general distributions. In: Mimeographed Lecture Notes. Summer Institute, Stanford (1961)
5. Beurling, A., Malliavin, P.: On the closure of characters and the zeros of entire functions. Acta Math. 118, 79–93 (1967)