The Effects of Structural Breaks in ARCH and GARCH Parameters on Persistence of GARCH Models. - Soosung Hwang; Pedro L. Valls Pereira (Commun. Stat. Simul. Comput., 2008)

R&D Activity Selection Process: Building a Strategy-Aligned R&D Portfolio for Government and Nonprofit Organizations. - Pedro L. Valls Pereira; Francisco M. Veloso (IEEE Trans. Engineering Management, 2009)