@article{JLT_2006_16_4_JLT_2006_16_4_a7,
     author = {Z. Reichstein and A. Vistoli },
     title = {Birational {Isomorphisms} between {Twisted} {Group} {Actions}},
     journal = {Journal of Lie theory},
     pages = {791--802},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {2006},
     url = {http://geodesic.mathdoc.fr/item/JLT_2006_16_4_JLT_2006_16_4_a7/}
}