1. Simula BEGIN;Birtwistle,1973
2. The Vienna development method: The meta-language;Björner,1978
3. Proposal for the NMP design-system -8401, that compiles functions described in a high-level language to hardware and VLSI-masks;Carlstedt;Hybridlaboratoriet Hylab AB,1984
4. Programming in Prolog;Clocksin,1981