@article {8970,
	title = {Defining topological equivalences in protein structures by means of a dynamic programming algorithm},
	journal = {Protein Engineering},
	year = {1993},
	pages = {373-376},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/8332594},
	author = {Y. Luo and L. Lai and X. Xu and Y. Tang}
}
