Xie, X., Yeo, S. Y., Xie, X., Sazonov, I., & Nithiarasu, P. (2011). Level set segmentation with robust image gradient energy and statistical shape prior. 18th IEEE International Conference on Image Processing, p. 3397. doi:10.1109/ICIP.2011.6116439

Xie, Xianghua, S. Y. Yeo, X. Xie, I. Sazonov, and P. Nithiarasu. "Level Set Segmentation With Robust Image Gradient Energy and Statistical Shape Prior." 18th IEEE International Conference On Image Processing 2011: 3397.

Xie, Xianghua, et al. "Level Set Segmentation With Robust Image Gradient Energy and Statistical Shape Prior." 18th IEEE International Conference On Image Processing 2011: 3397.