@article{AA_2021_33_1_a6,
     author = {I. Panin and C. Walter},
     title = {Quaternionic {Grassmannians} and {Borel} classes in algebraic geometry},
     journal = {Algebra i analiz},
     pages = {136--193},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AA_2021_33_1_a6/}
}