A Stratified Sampling Technique for an Ellipse. - Chung-Ming Wang; Nen-Chin Hwang (J. Graphics, GPU, & Game Tools, 2004)

A Novel Algorithm for Sampling Uniformly in the Directional Space of a Cone. - Chung-Ming Wang; Chung-Hsien Chang; Nen-Chin Hwang; Yuan-Yu Tsai (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2006)