3Agne Rustan. A Review of the Use of Digital Computer for Mine Ventilation[ J ]. Lulea University of Tecknology, 1987 ( 10 ) : 2 --3.
4B. H. McCormick, T. A. DeFanti, M. D. Brown ,Visualization in scientific computing ,Computer Graphics ,Vol. 21,No. 6,1987.
5G. G. Roberson,S. K. Card ,J. D. Mackinlay,The cognitive co-processor for interactive user interfaces,Proceedings of UIS'89, ACM Symposiom on user interface and software and technology, 10--18,1989.
6James A. Wise, James J. Thomas, Kelly Pennock, David Lantrip,Marc Pottier,and Anne Schur,Visualizing the non- visual: Spatial analysis and interaction with information from text documents, Proc. of the Information Visualization Symposium 95, pages 51-58. IEEE Computer Society Press, 1995.
7Y. Maarek, M. Jacovi, M. Shtalhaim, S. Ur, D. Zernik,and L g. Ben Shaul, WebCutter: A system for dynamic and tailorable site mapping, 6th WWW Conference,pages 713-- 722 ,Santa Clara ,CA, USA, 1997.
