On the structure of the group scheme [/p n ] ×
Compositio Mathematica, Tome 97 (1995) no. 1-2, p. 253-271
@article{CM_1995__97_1-2_253_0,
     author = {Sekiguchi, Tsutomu and Suwa, Noriyuki},
     title = {On the structure of the group scheme $\mathbb {Z}[\mathbb {Z} / p^n]^\times $},
     journal = {Compositio Mathematica},
     publisher = {Kluwer Academic Publishers},
     volume = {97},
     number = {1-2},
     year = {1995},
     pages = {253-271},
     zbl = {0876.14031},
     mrnumber = {1355127},
     language = {en},
     url = {http://www.numdam.org/item/CM_1995__97_1-2_253_0}
}
Sekiguchi, Tsutomu; Suwa, Noriyuki. On the structure of the group scheme $\mathbb {Z}[\mathbb {Z} / p^n]^\times $. Compositio Mathematica, Tome 97 (1995) no. 1-2, pp. 253-271. http://www.numdam.org/item/CM_1995__97_1-2_253_0/

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