Ming-Hoe Kiu David C. Banks 121-126 1996 conf/visualization/1996 IEEE Visualization db/conf/visualization/visualization1996.html#KiuB96 https://doi.org/10.1109/VISUAL.1996.567784 https://doi.ieeecomputersociety.org/10.1109/VISUAL.1996.567784 http://dl.acm.org/citation.cfm?id=245033