L. Carleson, Interpolation by bounded analytic functions and the corona problem Annals of Math, pp.547-559, 1962.

A. Escassut and . Mainetti, About the ultrametric corona problem, Bulletin des Sciences Math??matiques, vol.132, issue.5, pp.382-394, 2008.
DOI : 10.1016/j.bulsci.2007.09.002

URL : https://hal.archives-ouvertes.fr/hal-00471263

A. Escassut and N. Mainetti, On Ideals of the Algebra of p-adic Bounded Analytic Functions on a Disk Bull, Belg. Math. Soc. Simon Stevin, vol.14, p.871876, 2007.

A. Escassut, N. A. Mainetti, and N. Mainetti, The ultrametric corona problem, Contemporary Mathematics, vol.508, pp.35-45, 1973.
DOI : 10.1090/conm/508/09990

URL : https://hal.archives-ouvertes.fr/hal-00681913

M. Van-der-put, The Non-Archimedean Corona Problem Table Ronde Anal. non Archimedienne, Bull. Soc, pp.287-317, 1974.