Hideo Matsuda T. Ishihara Akihiro Hashimoto Classifying Molecular Sequences Using a Linkage Graph With Their Pairwise Similarities. 305-325 1999 210 Theor. Comput. Sci. 2 db/journals/tcs/tcs210.html#MatsudaIH99 https://doi.org/10.1016/S0304-3975(98)00091-7