VUORINEN, Matti. On Teichmüller’s modulus problem in $\mathsf{R}^n$. Mathematica Scandinavica, Berkeley, CA, United States, v. 63, p. 315–333, 1988. DOI: 10.7146/math.scand.a-12244. Disponível em: https://journals.msp.org/mscand/article/view/1420. Acesso em: 25 jul. 2026.