Notes, Comments and Preliminary results May 09 2009 Kam Ki Tang and Dennis Petrie   Non-Hierarchical Bivariate Decomposition of Theil Indexes   Abstract  Contact Information  Citation  Full Text  -  Note   Sep 04 2005 Kam Ki Tang , Rodney Beard , Evelyn Ng and Leopoldo Yanes   The hierarchical structure of a firm: a geometric approach   Abstract  Contact Information  Citation  Full Text  -  Preliminary Result