Notes, Comments and Preliminary results Jan 18 2007 Sergio Da Silva , Annibal Figueiredo , Iram Gleria and Raul Matsushita   Hurst exponents, power laws, and efficiency in the Brazilian foreign exchange market   Abstract  Contact Information  Citation  Full Text  -  Note   Mar 28 2003 Sergio Da Silva , Annibal Figueiredo , Iram Gleria and Raul Matsushita   Fractal structure in the Chinese yuan/US dollar rate   Abstract  Contact Information  Citation  Full Text  -  Note