Enders, Walter and Holt, Matthew T. (2011): Breaks, bubbles, booms, and busts: the evolution of primary commodity price fundamentals. Unpublished.
Goodwin, Barry K.; Holt, Matthew T. and Prestemon, Jeffery P. (2008): North American Oriented Strand Board Markets, Arbitrage Activity, and Market Price Dynamics: A Smooth Transition Approach. Unpublished.
Yaya, Mehmet-Erdem (2005): Immigration, Trade and Wages in Germany. Published in: Romanian Journal of European Studies No. 5-6 (2007): pp. 85-100.
