@article{AA_2007_19_5_a6,
     author = {J.-L. Colliot-Th\'el\`ene and N. A. Karpenko and A. S. Merkur'ev},
     title = {Rational surfaces and the canonical dimension of $\mathbf{PGL}_6$},
     journal = {Algebra i analiz},
     pages = {159--178},
     publisher = {mathdoc},
     volume = {19},
     number = {5},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2007_19_5_a6/}
}