Senko, Michael E. "FORAL LP - Making Pointed Queries with a Light Pen" pp635-640 (1977) |
Information Processing 77 (Proc. (1977) Information Processing 77 (Proc. IFIP Congress 77, Toronto, August 8-12, 1977), Vol. 7, Elsevier North-Holland, Inc., New York, 1977
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