@article{IM2_1990_35_2_a4,
     author = {Yu. M. Movsisyan},
     title = {The multiplicative group of a~field and hyperidentities},
     journal = {Izvestiya. Mathematics},
     pages = {377--391},
     year = {1990},
     volume = {35},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1990_35_2_a4/}
}