A1 publication Journal title Physical Review B Publication date November 1998 Volume, issue & page range or art. n 57, (10), R5575-R5578. Year 1998 Authors Meersschaut J.; Dekoster J.; Demuynck S.; Cottenier S.; Swinnen B.; Rots M. DOI http://dx.doi.org/10.1103/PhysRevB.57.R5575