@article{10_4153_CJM_2011_058_x,
     author = {Jardine, J. F.},
     title = {Pointed {Torsors}},
     journal = {Canadian journal of mathematics},
     pages = {1345--1363},
     year = {2011},
     volume = {63},
     number = {6},
     doi = {10.4153/CJM-2011-058-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-058-x/}
}