Thy-Hou Lin Jia-Jiunn Lin Wen-Jiun Peng Jin-Hwang Liu Common Structural Folds in Several Protein Pairs Searched by an Iterative Superposition Algorithm. 109-119 1999 23 Computers & Chemistry 2 http://dx.doi.org/10.1016/S0097-8485(99)00004-2 db/journals/candc/candc23.html#LinLPL99