1.The drivers behind the globalization of natural gas markets
Ahmed El Hachemi Mazighi
OPEC ReviewVolume 30, Issue 2, pages 71–84, June 2006
http://onlinelibrary.wiley.com/doi/10.1111/j.1468-0076.2006.00162.x/abstract
2.Some risks related to the short-term trading of natural gas
Ahmed El Hachemi Mazighi
OPEC ReviewVolume 28, Issue 3, pages 227–239, September 2004
http://onlinelibrary.wiley.com/doi/10.1111/j.0277-0180.2004.00135.x/abstract