@article{rps2007, author = "Matthias Rupp and Ewgenij Proschak and Gisbert Schneider", title = "Kernel Approach to Molecular Similarity Based on Iterative Graph Similarity", journal = "Journal of Chemical Information and Modeling", volume = 47, number = 6, pages = {2280--2286}, publisher = "American Chemical Society", year = 2007 }