@article{Willighagen2013, author = "Egon Willighagen", title = "{Journal of Cheminformatics - Volume 4}", year = "2013", month = "7", url = "https://figshare.com/articles/journal_contribution/Journal_of_Cheminformatics_Volume_4/741723", doi = "10.6084/m9.figshare.741723.v1" }