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2. S. Abramsky and C.L. Hankin (eds). Abstract Interpretation of Declarative Languages. Ellis-Horwood, 1987.
3. S. Abramsky. Notes on Strictness Analysis for Polymorphic Functions. Draft paper, 1988.
4. G.L. Burn, C.L. Hankin and S. Abramsky. Strictness Analysis for Higher-Order Functions. Science of Computer Programming, 7, 1986.
5. R.J.M. Hughes. Abstract Interpretation of First-Order Polymorphic Functions. Proceedings of the 1988 Glasgow Workshop on Functional Programming, Research Report 89/R4, University of Glasgow, 1989.