scientific article published in January 1991

scientific article published in January 1984

scientific article published in January 1980

scholarly article

scientific article published in January 1982

scientific article

scientific article published in Astronomy and Astrophysics

scientific article published in January 1991

scholarly article

scientific article published in January 2005

scholarly article

scientific article published in January 2011

scientific article published in January 2003

scientific article published in January 1991

scientific article

scientific article published in January 1977

scientific article published in January 1984

scientific article published in January 1992

scientific article

scientific article published in January 1987

scientific article published in January 1984

scientific article published in January 1979

scientific article published in January 1981

scientific article published in January 1998

scientific article published in January 2003

scientific article published in January 1985

scientific article

scientific article

scientific article published in January 1986

scientific article

scientific article published in January 1992

scholarly article in Bulletin of the American Astronomical Society, vol. 18, 1986

scholarly article

scientific article published in January 1988

scientific article published in January 1977

scholarly article

scientific article published in January 1993

scholarly article in Bulletin of the American Astronomical Society, vol. 17, 1985

scientific article published in January 1995

scholarly article

scientific article published in January 1985

scientific article published in January 1982

scientific article published in January 1987

scientific article published in January 1987

scientific article published in January 1984

scientific article published in January 1989

scientific article published in January 1995

scientific article

scientific article published in January 1994

scientific article published in January 1988

scientific article published in January 1982

scholarly article

scientific article published in January 1992

scientific article

scholarly article

scientific article published in January 1985

scientific article published in January 1981

scientific article published in the Astrophysical Journal

scientific article published in the Astrophysical Journal

scientific article

scientific article published in January 2003

scientific article

scholarly article

scientific article published in January 1998

scientific article published in January 1992

scientific article published in January 1997

scientific article

scientific article published in Astronomy and Astrophysics

scientific article published in January 1990

scientific article published in the Astrophysical Journal