Protein structure comparison by probability-based matching of secondary structure elements. - Edward S. C. Shih; Ming-Jing Hwang (Bioinform., 2003)

OPAAS: a web server for optimal, permuted, and other alternative alignments of protein structures. - Edward S. C. Shih; Ruei-chi R. Gan; Ming-Jing Hwang (Nucleic Acids Res., 2006)