Sun, Xiaochun Independent Research Group: Concepts and Modalities: Practical Knowledge Transmission, Max Planck Institute for the History of Science, Max Planck Society;
Sun, X., & Li, G. (2009). (in Chinese) Gnomon shadow measurements and changes in cosmology since Han China. The Chinese Journal for the History of Science and Technology = Zhongguo Kejishi Zazhi, 30(1), 120-131.