Hong Zhou Yingcai Wu Ming-Yuen Chan Huamin Qu Zhengmao Xie Xiaoming Li Knowledge Discovery by Network Visualization. 240-251 2008 Edutainment http://dx.doi.org/10.1007/978-3-540-69736-7_26 conf/edutainment/2008 db/conf/edutainment/edutainment2008.html#ZhouWCQXL08