1. Baek, E., Brock, W., 1992. A General Test for Non-linear Granger Causality: Bivariate Model. Working Paper, Iowa State University and Madison, University of Wisconsin, Ames.
2. Nonparametric cointegration analysis;Bierens;Journal of Econometrics,1997
3. Commodity Prices and the New Inflation;Bosworth,1982
4. On U-statistics and von-Mises statistics for weakly dependent processes;Denker;Zeitscbrift für Wabrscheinlicbkeitstbeorie und Verwandte Gebiete,1983
5. A note on the Hiemstra–Jones test for Granger non-causality;Diks;Studies in Nonlinear Dynamics and Econometrics,2005