Jul 20 2012 Miguel A. Espinosa and Juan D. Prada   Identities for Homogeneous Utility Functions   Abstract  Contact Information  Citation  Full Text  -  Note   Apr 14 2007 José C. R. Alcantud and Susanne Fuchs-Seliger   On integrability and aggregation of superior demand functions   Abstract  Contact Information  Citation  Full Text  -  Note