PublicationPhysical Review LettersPaperGefen et al. respond [1]Physical Review LettersView publicationAbstractNo abstract available.Home↳ PublicationsDate22 Jun 1987PublicationPhysical Review LettersAuthorsY. GefenW.H. ShihR.B. LaibowitzJ.M. ViggianoIBM-affiliated at time of publicationShare