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Procs. (1995) Procs. 7th International Symposium on Programming Languages: Implementations, Logics and Programs (PLILP), Utrecht (The Netherlands), September 1995, LNCS 982,  

Languages mentioned ANNA {1987} Asspegique {1985} Excalibur {1988} MODULOG  {1987} OBJ2 {1984} Paslog {1990} Hybrid of Pascal and Prolog PLEASE {1984}