@article{JTNB_2007__19_3_763_0,
     author = {Yasuda, Seidai},
     title = {Local $\varepsilon _0$-characters in torsion rings},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {763--797},
     publisher = {Universit\'e Bordeaux 1},
     volume = {19},
     number = {3},
     year = {2007},
     doi = {10.5802/jtnb.611},
     zbl = {1162.11055},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jtnb.611/}
}