@article{IM2_2006_70_5_a4,
     author = {L. V. Kuz'min},
     title = {A property of the $\ell$-adic logarithms of units of},
     journal = {Izvestiya. Mathematics},
     pages = {949--974},
     year = {2006},
     volume = {70},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2006_70_5_a4/}
}