scientific article published in January 1985

scientific article published in January 1978

scientific article

scientific article published in January 1989

scholarly article

scholarly article

scientific article published in January 1986

article published in 1998

scientific article published in January 1982

scientific article published in January 1974

scientific article published in January 1993

scholarly article

scientific article published in January 1971

scientific article published in January 1972

scientific article published in January 1972

scientific article