@article{CTGDC_2010__51_4_243_0,
     author = {Rump, Wolfgang},
     title = {Objective categories and schemes},
     journal = {Cahiers de Topologie et G\'eom\'etrie Diff\'erentielle Cat\'egoriques},
     eid = {1},
     pages = {243--271},
     publisher = {Andr\'ee CHARLES EHRESMANN},
     volume = {51},
     number = {4},
     year = {2010},
     mrnumber = {2778309},
     zbl = {1269.18008},
     language = {en},
     url = {http://www.numdam.org/item/CTGDC_2010__51_4_243_0/}
}