@article{AL_2004_43_5_a3,
     author = {Yu. L. Ershov},
     title = {Extremal {Valued} {Fields}},
     journal = {Algebra i logika},
     pages = {582--588},
     year = {2004},
     volume = {43},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_2004_43_5_a3/}
}