The CRISPRdb database and tools to display CRISPRs and to generate dictionaries of spacers and repeats. - Ibtissem Grissa; Gilles Vergnaud; Christine Pourcel (BMC Bioinform., 2007)

CRISPRFinder: a web tool to identify clustered regularly interspaced short palindromic repeats. - Ibtissem Grissa; Gilles Vergnaud; Christine Pourcel (Nucleic Acids Res., 2007)

CRISPRcompar: a website to compare clustered regularly interspaced short palindromic repeats. - Ibtissem Grissa; Gilles Vergnaud; Christine Pourcel (Nucleic Acids Res., 2008)