<r>Hi,would anyone be so kind and send me Duan's article ?The GARCH Option Pricing Model?, 1995, Mathematical Finance 5(1), 13-32 and / or Duan's article ?An Analytical Approximation for the GARCH Option Pricing Model?, (with G. Gauthier and J.G.Simonato), 1999 (Summer), Journal of Computational Fin...