Template-Type: ReDIF-Paper 1.0 Title: Nonnegative group inverses Author-Name: Neumann,Michael Author-Name: Werner Hans-Joachim Author-WorkPlace-Name: Neumann:Storrs,USA & Werner:University of Bonn Classification-JEL: 210 Keywords: Nonnegativity,Group inverse Series: Sonderforschungsbereich 303 Creation-Date: 1989 Handle: RePEc:bon:bonsfb:134