@article{TAC_2017_32_a2,
     author = {Vladimir Voevodsky},
     title = {C-systems defined by universe categories: presheaves},
     journal = {Theory and applications of categories},
     pages = {53--112},
     publisher = {mathdoc},
     volume = {32},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2017_32_a2/}
}