Gupta, Anil and Savion, Leah. 1987. “Semantics of Propositional Attitudes: A Critical Study of Cresswell (1985).”The Journal of Philosophical Logic 16(4): 395–410.
Further References
Cresswell, Maxwell J. 1985. Structured Meanings: The Semantics of Propositional Attitudes. Dordrecht: D. Reidel Publishing Co.