@article{IM2_2019_83_4_a8,
     author = {V. L. Popov},
     title = {Three plots about {Cremona} groups},
     journal = {Izvestiya. Mathematics},
     pages = {830--859},
     year = {2019},
     volume = {83},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2019_83_4_a8/}
}