@article{TAC_2001_9_a2,
     author = {Tibor Beke},
     title = {Simplicial torsors},
     journal = {Theory and applications of categories},
     pages = {43--60},
     year = {2001},
     volume = {9},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2001_9_a2/}
}