Schroeder-Heister, Peter
(1989); Article; Proceedings of the Workshop on Programming Logic, Båstad, Sweden, 21-26 May 1989. Ed. by Peter Dybjer, Lars Hallnäs, Bengt Nordström, Kent Petersson and Jan M. Smith. Programming Methodology Group, University of Göteborg and Chalmers University of Technology 1989, Report 54, pp. 494-517