1. Extension Theory and Its Application;Cai;Chinese Science Bulletin,1999
2. Xu Sijing, Zhu Jianning. Introducing Extenics into Landscape Architecture Creation. Classical Chinese Garden, 2015(2); 85–91
3. Basic Theory and Methodology System of Extenics;Wen;Chinese Science Bulletin,2013
4. Logical Basis of Extenics;Wen,2003
5. Introducing Extenics into Landscape Architecture Creation;Sijing;Classical Chinese Garden,2015