scientific article published on 01 November 1961

scientific article published on March 1, 1979

scientific article published in January 1966

scientific article published in January 1972

scientific article published on 01 September 1962

scientific article published on 01 June 1988

scientific article

scientific article

scientific article published on 01 January 1978

scientific article published in August 1986

scientific article published on 01 October 1980

scientific article published on 01 February 1984

scientific article published on 01 February 1980

scientific article published on 01 December 1987

scientific article published on 01 January 1974

scientific article published on 01 August 1985

scientific article published on 01 July 1994

scientific article

article

scientific article published on 01 December 1984

scientific article published in August 1989

scientific article published in January 1987

scientific article published on 01 January 1997

scientific article published on 01 August 1968

scientific article published on 01 December 1978

scientific article published in October 1973

scientific article published on 01 September 1958

scientific article published on September 1, 1975

scientific article

scientific article published on 01 October 1973

scientific article published in March 1958

scientific article published on 01 April 1989

scientific article published on May 1, 1979

scientific article published on November 1, 1982

scientific article published on 01 June 1983

scientific article published on March 1984

scientific article published on 01 January 1980

scientific article published on May 24, 1975

scientific article published on January 1, 1977

scientific article published on 01 February 1986

scientific article published in October 1984

scientific article published on 01 January 1985

scientific article published on 01 April 1994

scientific article published on February 1, 1979

scientific article published on 01 May 1999

scientific article

scientific article

scientific article published on 01 January 1988

scientific article published on 01 January 1990

scientific article published on September 1987

scientific article published on 01 September 1975

scientific article published on January 1, 1979

scientific article published on July 1987

scientific article published on 01 February 1980

scientific article published in May 1974

scientific article published on 01 December 1980

scientific article published on 01 June 1964

scientific article published on May 1, 1976

scientific article published on August 1, 1979

scientific article published on January 19, 1991

scientific article published on 01 April 1986

scientific article published on 01 May 1986

scientific article published in March 1994

scientific article published on 01 January 1986

scientific article published on 01 April 1985

scientific article published on 01 May 1967

scientific article published on 01 November 1961

scientific article published in October 1956

scientific article published on 01 April 1980

scientific article published on 01 January 1988

scientific article published on 01 November 1988

scientific article published on 01 January 1988