Subieta, Kazimierz "Semantics of query languages for network databases"

(1985) Transactions on Data Systems 10(3) Sept 1985  

Languages mentioned CQLF {1982} Networked query lagnuage EAS-E {1983} EOS {1978} HARVEST {1979} ILL {1977} J {1985} LSL {1976} NAVIGATOR {1982} NETUL {1984} PLAIN {1976} SSL {1985} UDL {1980} Unified Data Language