article

scientific article published on October 1991

scientific article

scientific article published in June 1994

scientific article

scientific article published in February 1980

scientific article

scientific article published in May 1972

scientific article published in September 1969

scientific article published in January 1972

scientific article published on 01 October 1982

scientific article published in February 1995

scientific article published in May 1977

scientific article published on June 1, 1977

scientific article published on April 1, 1983

scientific article

scientific article published on 01 November 1982

scientific article published on 01 June 1994

scientific article published in August 1997

article published in 1993

scientific article

scientific article published in September 2000

scientific article published in March 1990

scientific article published on October 1993

scientific article published on April 1993

scientific article published in August 1985

scientific article published in January 1997

scientific article published in December 1996

scientific article published on 01 January 1991

scientific article published on December 1, 1976

scientific article published on 01 January 1987

scientific article published in November 1991

scientific article published on 01 October 1994

scientific article published on 01 January 1984

scientific article published in April 1992

scientific article published on March 1993

scientific article published on June 1, 1978

article

scientific article

scientific article published on September 1986

scientific article

scientific article published on 01 November 2000

scientific article published on August 1983

scientific article published on January 1, 1988

scientific article published on 01 November 1979

scientific article published on September 1, 1977

scientific article published on November 1, 1977

scientific article published on March 1997

scientific article published in September 1991

article

scientific article published on 01 March 1979

scientific article published on 01 December 1976

scientific article published on July 1, 1978