article

scientific article published in December 1996

scientific article published in Physical Review Letters

scientific article published in Physical Review Letters

scientific article published in Physical Review Letters

scientific article published in Physical Review Letters

scientific article published on 01 April 1992

scientific article

scientific article published in Physical Review Letters

scientific article published in Nature

scientific article

scientific article

scientific article

scientific article published in Physical Review Letters

scientific article

scientific article published in Physical Review Letters

scientific article published in Physical Review Letters

scientific article published in Physical Review Letters

scientific article published on 01 October 1987

scientific article

scientific article published on 01 January 1987

scientific article

scientific article

scientific article published on 27 June 2001

scientific article published on 01 November 1993

scientific article published on 01 August 1994

scientific article published on 28 October 2002

scientific article published in Physical Review Letters

scientific article published on 15 June 2012

scientific article published on 01 March 1996

scientific article published in Physical Review Letters

scientific article published in Physical Review Letters

scientific article

scientific article published on 17 November 2006

scientific article published on 01 November 1995

article

scientific article published in Physical Review Letters

scientific article

scientific article published on 01 January 1985

scientific article published in July 2016

scientific article published in Physical Review Letters

scholarly article

scientific article published on 30 June 2015

scientific article published on 01 April 1996

scientific article published on 11 October 2000