scientific article published on August 11, 1975

scientific article published on 01 January 1966

scientific article published in October 1984

scientific article published in May 1968

scientific article published on 01 October 1983

scientific article published on 01 January 1990

scientific article published on 01 January 1968

scientific article published in November 1984

scientific article published in March 1990

scientific article published on 01 January 1967

scientific article published on 01 May 1971

scientific article published in April 1987

scientific article

scientific article published in January 1990

scientific article

scientific article published on January 1, 1995

scientific article published on 01 January 1996

scientific article published on January 1995

scientific article published in October 2004

scientific article published on 01 January 1978

scientific article published in May 1989

scientific article published on 01 October 1995

scientific article published on January 1994

scientific article published on 01 April 1966

scientific article published on January 1980

scientific article published on 01 March 1984

scientific article published on 01 July 1987

scientific article published on 01 July 1990

scientific article published on 01 November 1965

scientific article published on 01 September 1983

scientific article published on 01 April 1988

scientific article published in January 1983

scientific article published on January 1996

scientific article published on 01 September 1982

scientific article published on January 1, 1977

scientific article published in January 1987

scientific article published on 01 January 1988

scientific article published in April 1991

scientific article published on 01 January 1990

scientific article published on 01 June 1990

scientific article published in June 1990

scientific article published on 01 November 1972

scientific article published on November 1, 1972

scientific article published on November 1, 1972

scientific article published on January 1991

scientific article published in October 1991

scientific article published on January 1, 1991

scientific article published on June 1, 1995

scientific article published on 01 June 1989

scientific article published in November 1991

scientific article

scientific article published on 01 April 1995

scientific article published in January 1990

scientific article published on January 1989

scientific article published on 01 May 1983

scientific article published in December 1980

scientific article published in November 1980

scientific article published on 01 June 1987

scientific article published in May 1987

scientific article published in March 1985

scientific article published in January 1993

scientific article published on 01 August 1983

scientific article published on 01 January 1983

scientific article published in September 1989

scientific article published on 01 February 1971

scientific article published on 01 November 1965

scientific article published on September 1, 1971

scientific article published on September 1, 1978

scientific article published on June 25, 1970

scientific article published on 01 November 1972

scientific article published on 01 January 1967

scientific article published in January 1983

scientific article published in January 1984

scientific article published on July 1, 1997

scientific article published on 01 January 1995

scientific article published on 01 January 1967

scientific article

scientific article published on July 1, 1995

scientific article published on April 1, 1972

scientific article published on 01 June 1971

scientific article published on 01 June 1971

scientific article published on 01 May 1972

scientific article published on 01 February 1981

scientific article published in January 1990

scientific article published on 01 March 1976

scientific article published in March 1997

scientific article published on 01 September 1992

scientific article published in October 2000

scientific article published on 01 September 1994

scientific article published in January 1983

scientific article published on 01 September 1966

scientific article published on 01 April 1985

scientific article published on 01 November 1967

scientific article published on 01 April 1984

scientific article published on 01 January 1984

scientific article published on 01 July 1987

scientific article published on January 1994

scientific article published on January 1, 1977

scientific article published on January 1, 1973

scientific article published on 01 January 1968

scientific article published in January 1996

scientific article published in January 1993

scientific article published on January 1, 1977

scientific article published on 01 May 1982

scientific article published on 01 February 1968

scientific article

scientific article published on January 1995

scientific article published on January 1990

scientific article published on 01 April 1966

scientific article published on 01 August 1983

scientific article published on 01 October 1985

scientific article published on 01 October 1967

scientific article published on 01 January 1968

scientific article published on 01 September 1967

scientific article

scientific article published in January 1983

scientific article published on 01 November 1988

scientific article published on 01 July 1970

scientific article published on 01 February 1982

scientific article published on 01 May 1989

scientific article published in January 1990