@article{SM_1993_76_2_a2,
     author = {E. M. Matveev},
     title = {On fundamental units of certain fields},
     journal = {Sbornik. Mathematics},
     pages = {293--304},
     year = {1993},
     volume = {76},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1993_76_2_a2/}
}