Finite Sample Performance in Cointegration Analysis of Nonlinear Time Series with Long Memory
Afonso Gonçalves da Silva, Peter Robinson
Econometric Reviews, vol. 27, 2008, p. 268-297.

Fractional Cointegration in Stochastic Volatility Models
Afonso Gonçalves da Silva, Peter Robinson
Econometric Theory, vol. 24, 2008, p. 1207-1253.

Why Should Central Banks Avoid the Use of the Underlying Inflation Indicator?
Carlos Robalo Marques, Pedro Neves, Afonso Gonçalves da Silva
Economics Letters, vol. 75, 2002, p. 17-23.