Koch, I., & Lengauer, T. (1997). Detection of Distant Structural Similarities in
a Set of Proteins Using a Fast Graph-based Method. In T. Gaasterland, P. D. Karp, K. Karplus, C. A. Ouzounis, C. Sander, &
A. Valencia (Eds.), Proceedings of the 5th International Conference
on Intelligent Systems for Molecular Biology (pp. 167-178). Washington DC: AAAI.