@article{10_4171_dm_x38,
     author = {Girish Kulkarni and Matthias Wendt and Elden Elmanto},
     title = {$\mathbb{A}^1$-connected components of classifying spaces and purity for torsors},
     journal = {Documenta mathematica},
     pages = {2657--2689},
     year = {2022},
     volume = {27},
     doi = {10.4171/dm/x38},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/x38/}
}