Techniques for the calculation of three-dimensional structural similarity using inter-atomic distances. - Catherine A. Pepperrell; Peter Willett 002 (J. Comput. Aided Mol. Des., 1991)

Similarity searching in databases of three-dimensional molecules and macromolecules. - Peter J. Artymiuk; Peter A. Bath; Helen M. Grindley; Catherine A. Pepperrell; Andrew R. Poirrette; David W. Rice; David A. Thorner; David J. Wild 002; Peter Willett 002 (J. Chem. Inf. Comput. Sci., 1992)