["NFQL: The Natural Forms Query Language", D. Embley, Trans Database Sys 14(2):168-211 (June 1989)].

In addition suitable contents:
[ 2 ] [ ag ] [ al ] [ an ] [ as ] [ at ] [ b ] [ ba ] [ base ] [ D ] [ E ] [ er ] [ FQL ] [ ge ] [ gu ] [ h ] [ J ] [ ms ] [ N ] [ ne ] [ ng ] [ ns ] [ Q ] [ QL ] [ S ] [ se ] [ T ] [ ua ]