FilesGran.pdf Restricted Access Adobe PDF2.46 MBRequest a copyDetailsAuthorsGran, MarinoUCLouvainauthorSupervisorsVitale, Enrico Maria ; Borceux, FrancisAffiliationsUCLouvainSC/MATH - Département de mathématiqueShow moreCitations APA Chicago FWB Gran, M. (1999). Central extensions for internal groupoids in Maltsev categories. https://hdl.handle.net/2078.5/124453