James A. Wise James J. Thomas Kelly Pennock D. Lantrip M. Pottier Anne Schur V. Crow Visualizing the non-visual: spatial analysis and interaction with information from text documents. 51-58 1995 conf/infovis/1995 INFOVIS http://doi.ieeecomputersociety.org/10.1109/INFVIS.1995.528686 db/conf/infovis/infovis1995.html#WiseTPLPSC95