Hayashi, S. (1993). "Logic of refinement types". Proceedings of the Workshop on Types for Proofs and Programs. pp.157–172. doi:10.1007/3-540-58085-9_74.
Denney, E. (1998). "Refinement types for specification". Proceedings of the IFIP International Conference on Programming Concepts and Methods. Vol.125. Chapman & Hall. pp.148–166. CiteSeerX10.1.1.22.4988.{{cite conference}}: Cite uses deprecated parameter |citeseerx= (help)