Ellipse Detection using the Hough Transform. - H. K. Yuen; John Illingworth; Josef Kittler (Alvey Vision Conference, 1988)

Detecting partially occluded ellipses using the Hough transform. - H. K. Yuen; John Illingworth; Josef Kittler (Image Vis. Comput., 1989)

Comparative study of Hough Transform methods for circle finding. - H. K. Yuen; John Princen; John Illingworth; Josef Kittler (Image Vis. Comput., 1990)

A note on minimizing absolute percentage error in combined forecasts. - Kim Fung Lam; H. W. Mui; H. K. Yuen (Comput. Oper. Res., 2001)