GLOBEVNIK, Josip; STOUT, Edgar Lee. Boundary regularity for holomorphic maps from the disc to the ball. Mathematica Scandinavica, Berkeley, CA, United States, v. 60, p. 31–38, 1987. DOI: 10.7146/math.scand.a-12169. Disponível em: https://journals.msp.org/mscand/article/view/1461. Acesso em: 25 jul. 2026.