scientific article published in January 1987

scientific article published in January 2004

scholarly article

scholarly article

scientific article published in January 2008

scientific article published in Astronomy and Astrophysics

scientific article published in the Astrophysical Journal

scientific article published in the Astrophysical Journal

scientific article published in January 2013

scientific article published in January 2012

scientific article published in January 2005

article

scientific article published in January 2012

scholarly article

scientific article published in January 2014

scholarly article

scientific article

scholarly article

scholarly article

scientific article published in January 1995

scholarly article

scientific article published in January 1978

scientific article

scholarly article

scientific article published in January 1987

scientific article published in the Astrophysical Journal

retraction notice

scholarly article

scientific article published in January 2004

scholarly article published 2002

scientific article published in January 2001

scientific article published in January 2014

scientific article published in January 2012

scientific article

scholarly article

scientific article published in January 2009

scientific article published in January 2005

scientific article published in January 2015

scientific article published in January 2005

scientific article published in January 2004

scholarly article

scientific article

scientific article published in January 2014