1. Some remarks on the model theory of infinitary languages;Chang,1968
2. Some remarks on infinitely long formulas;Henkin,1961
3. Constituents and finite indetifiability;Hintikka;J. Philos. Logic.,1972
4. Language-Games, and Information;Hintikka,1973
5. Towards a general theory of auxilliary concepts and definability in first-order theories;Hintikka,1970