Ballabio, G.Goldoni, A.Modesti, S.Tosatti, E.2004-12-032004-12-0320012001http://hdl.handle.net/2003/148110.17877/DE290R-11324enThe American Physical SocietyPhysical Review Letters530Fractional Surface Doping by Topological Neutral Wall Intersections on Ge(111)10.1103/PhysRevLett.87.186802article (journal)