no. 2
Effective diophantine approximation on 𝔾 M , II
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 24 (1997) no. 2, pp. 205-225. 
@article{ASNSP_1997_4_24_2_205_0,
     author = {Bombieri, Enrico and Cohen, Paula Beazley},
     title = {Effective diophantine approximation on $\mathbb {G}\_M$, II},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {205--225},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 24},
     number = {2},
     year = {1997},
     zbl = {0912.11028},
     mrnumber = {1487954},
     language = {en},
     url = {archive.numdam.org/item/ASNSP_1997_4_24_2_205_0/}
}
Bombieri, E.; Cohen, P. B. Effective diophantine approximation on $\mathbb {G}_M$, II. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 24 (1997) no. 2, pp. 205-225. http://archive.numdam.org/item/ASNSP_1997_4_24_2_205_0/

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