1. Inductive inference and unsolvability;Adleman,1975
2. Toward a mathematical theory of inductive inference;Blum;Inform. and Control,1975
3. Eine Charakterisierung von identifizierbaren Mengen partiell rekursiver Funktionen;Brandt,1982
4. Limiting recursion;Gold;J. Symbolic Logic,1965
5. Language identification in the limit;Gold;Inform. and Control,1967