@article{IM2_1997_61_4_a0,
     author = {I. V. Arzhantsev},
     title = {On $\operatorname{SL}_2$-actions of complexity one},
     journal = {Izvestiya. Mathematics },
     pages = {685--698},
     publisher = {mathdoc},
     volume = {61},
     number = {4},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1997_61_4_a0/}
}