L. Carleson: On the support of harmonic measure for sets of Cantor type.
Ann. Ac. Sci. Fenn. 10 (1985), 113-123.

Theodore Gamelin: Uniform algebras and Jensen measures. Cambridge UP 1978.

John Garnett/Peter Jones: The corona theorem for Denjoy domains.
Acta Math. 155 (1985), 27-40.

P. Jones/T. Wolff: Hausdorff dimension of hamronic measures in the plane.
Acta Math. 161 (1988), 131-144.

N. Sibony: Probleme de la couronne pour des domaines pseudoconvexes a bord lisse.
Ann. Math. 126 (1987), 675-682.

E. Stout: Two theorems concerning functions holomorphic on multiply connected
domains. Bull. AMS 69 (1963), 527-530.