@article{MZM_1969_5_2_a0,
     author = {Yu. I. Manin},
     title = {Regular elements in the {Cremonian} group},
     journal = {Matemati\v{c}eskie zametki},
     pages = {145--148},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1969_5_2_a0/}
}